OwnCloud/Nextcloud is a great application for cloud storage of files, and makes sharing specific files or folders easy and fast. It also makes a great tool for real-time collaboration, including real-time chat and simultaneous editing of documents or spreadsheets. I have used ownCloud to assist clients in sending large files that could not be emailed -- for example, one of my clients is a Video Production agency. They produced a commercial to air, but could not email the file as it was 400MB. OwncCloud came to the rescue. I set up a temporary share and allowed him access to upload into that folder. Once the file was in the folder, I generated a share link that was then forwarded to TV stations for instant viewing in a browser. Each TV station then downloaded it and was able to add it to their scheduling system quickly. From the Photography side... I am able to deliver large amounts of files quickly and easily to my clients, and they can download or view on mobile devices easily. Since I use ownCloud on a daily basis, I cannot think of any reason why I would not use this software
OneDrive does a great job of keeping file version history. I have had to use this feature many times and it is very simple to use. This one feature has saved my butt many times.
OneDrive synchronizes across devices very quickly. There have been many instances when I have added files online and, within seconds, saw the file show up on my local computer. This happens the other direction also. I am very impressed and satisfied with the speed of syncing in all directions.
The OneDrive app on my phone has been particularly helpful since it automatically syncs my photos (usually within seconds) and allows me access to all my files.
Sending Links - Though you can easily share links to files from the web experience, it isn't the same on the native experience. It would be nice if you could right click on a file to share its location with someone vs. opening the office application to share with others.
File Character Restrictions - This isn't just with OneDrive, but sometimes files will not upload due to an unsupported character in the file name.
I like Box better. If you sign into Microsoft using a personal account, be EXTREMELY careful. All of your downloads could suddenly be available to your entire company, and that is incredibly embarrassing. Did that happen to me? Not going to say, but just always check which MS account you sign into.
I have given it this rating because it accomplishes the basic task that we use it for, storing and protecting our sensitive data. That being said, I hesitate to give it a completely positive rating, because I feel that the software performs at a bare minimum level, skimping out on some of the bells and whistles that would be nice.
OwnCloud is easy for me to use, and I believe it would be for others too. The barrier for most people will be the set up. For a technology professional like myself, ownCloud's setup is pretty straightforward, but it's not the sort of thing most casual users will be able to handle. Also, it's on the user to maintain the service. These can be taken care of by paying someone to do it for you.
It has a good performance, the pages load normally, access to the files, management, reports, everything is working well. With regard to integration with other systems, we have not done so yet.
Compared with other cloud services, ownCloud has been the most efficient. It doesn't create a noticeable drain on resources and very quickly syncs across all my devices. I'm usually able to save a file on my laptop and by the time I walk over and sit down at my desktop machine, it's already there. I don't need to wait as often as I have with services like OneDrive.
It's a Microsoft product so there is a wealth of information online both from Microsoft directly and from millions of users but as a corporate user we also have access to direct Microsoft support through a variety of avenues (phone, email, etc.). This makes finding answers to issues more accessible, however, it does also mean that any new feature requests will get buried.
Regarding the community edition, there is a reasonably good support on the IRC, forums and in the issue section on Github. Perhaps a much more individual approach would be available if the premium support was chosen and the instance of the server was provided by the Owncloud company that also offers some premium extensions, not available generally. However, we did not need this level of support yet.
OneDrive feels native is you are a Microsoft 365 user. The integration aspect of being a Microsoft customer and using all platform tools together helps with driving adoption, ease of learning, and overall efficiency. While Google Drive is widely used as well, there is a ramp up to learning those controls over OneDrive is you are not used to those platforms.
ownCloud is better than Google Drive and Microsoft's OneDrive. I have not used Google Drive in some time now, so it may have improved. OneDrive has become better over time too, but my go-to is still ownCloud. Firstly, I prefer to have my data under my control. No other service can offer the level of control that ownCloud does. Setting that aside, in my experience Google Drive never quite got syncing right. Unless you have a very small collection of files and you're not synced across many devices, Google Drive fails to achieve a complete sync. The icon is always showing that Drive is syncing (and not up to date). I've had similar issues with OneDrive, but these days on Windows 10 OneDrive usually can achieve a complete sync across multiple devices, but it often hogs CPU and Network resources to do so, and it's still slower than OneDrive.
OneDrive allows us to save much time on creating and archiving backup copies of our data. Microsoft gives a guarantee on the possibility of recovery of files or folders even from 30 days ago. It provides a great comfort of work.
The company grew from 4 employees in 2013 when ownCloud was initially deployed to about 40 in 2017 and still using it with a very similar setting without any major upgrade on the same Linux VPS. 95% of all company data are stored and shared via ownCloud successfully. No clear data about ROI but clearly the perfect adoption rate by all people and its ubiquitous use makes it an essential part of the company workflow.