ClickSend aims to help businesses communicate with their customers and staff in the moments that matter on the channels, they use every day. ClickSend is designed to power billions of messages worldwide and offers a full suite of communications products from SMS and rich messaging to letters and fax all done via online dashboard or API.
ClickSend is not for activation account SMS. For that, you can use services like TWILIO. Neither is it for having continuous communication with your users, like a kind of chat over SMS (becomes expensive). Better to try to route your users to a common customer communication tool like Facebook Messenger or something.
It is definitely suitable for outbound marketing campaigns to already registered users. Some exmples would be to send a communication annoucement, send a general offer to all your database of users, to send offers to a particular segment of users by filtering them, automated marketing campaigns based on users who join lists (users that just register and you send 1-5 welcome SMS with tips and tricks on how to better use your product, SMS to users who have an issue with payment method so they can check quickly with its bank, automated SMS with offers each time the user makes a trip, a buy, or gets more engaged with the product).
In general, support is good. Actually they usually write to you about things like when you upload your first contacts, send your first campaign, or when you forget to put the opt-out option. Of course, they are automated emails but it happens that if you reply to one of them a real support agent will attend to your case. If you have any doubt you can write directly to support by email. I'm not sure if they are using Zendesk or any other kind of program but they usually answer in less than 2 hours. Still, the option of an actual real-time chat is missing.
The starting price of ClickSend is significantly low, and one is not bailed, instead, they pay for what they use. ClickSend works in almost all devices, from Apple products, Windows, and even Android devices. The existence of intelligent mail support is another driver that makes ClickSend more advanced and reputable, as it tracks the minds of audiences and even employees.
The ROI is time. More time focused, less time distracted with a mobile device.
Early days, however the customer survey and marketing campaigns will hopefully yield results.
Customer adherence to appointments and/or rescheduling for missed appointments has drastically increased with the use of reminder and follow-up SMS options that normally wouldn't be used as often on a mobile device.