App Builder

We have experience in SAP ABAP, winform and Xamarin (android, ios) development but almost nothing in web development so App Builder its a great tool to design and generate the code of the web application in Blazor so we only has to write the code behind, special routines and api to interface data.

its well suited for custom developments.
For standard use like blog there are on clic install solutions

I've used App Builder in order to test it and consider if it fits our company goals. Overall, my experience was positive but I believe there is still room for improvement. I did not recommend an investment but I strongly suggested my company keep an eye on its future developments.

The tool is great for creating quick prototypes from which developers can actually start building the final product. I would recommend it for small projects. If you want to use App Builder for agile projects with lots of user interfaces you will have to consider a micro frontend architecture otherwise the project may not scale efficiently.

Potentially, great product for cutting Blazor UI development time down to hours instead of days or weeks.
The app also allows for rapid prototyping which eliminates the need for code rewrites.
My guess is that in the next 6-9 months the Blazor product will be stable enough and contain the necessary features to implement this in a production environment.

App Builder will be great where you have a small team with limited resources.
Obviously this product is only good if you are starting a new project. I have used Radzen before which does almost the same thing using a database first approach, but it was a real pain as the application crashes a lot.

I do create sketch of forms to discuss with clients.

As said before I use it to sketch the forms. It's perfect for this. I use also the ability to publish it so that the clients can access it via the web and set their comments.

We used ID to create a new application from design to developer hand-off. The design team and our premier Angular development team were users of the product. We wanted to use the same tools and materials in a design that would be used in the development to allow for zero friction in the turnover of design assets. The capability to generate working Angular components with styles was a huge game-changer.