The Online Community is an amazing conglomeration of professionals that are always willing to assist a developer with ideas, troubleshooting, and more. Just having someone available to talk to about how to create your vision within the software is invaluable.
The user interface is familiar and easily navigable. If you've used MS Office products, then you'll know where you are and where to go find what you need. Since Office is everywhere, I'd bet you're familiar.
I wasn't on board, initially, with the subscription model. I've found that it is a great idea for a variety of reasons. Interactivity with the other products (Review and Rise) is outstanding and flawless.
The formats that are available for export are great as well. As I stated earlier, the ability to export as a website really helped me create something special for a particular client that has resulted in that website being used across thousands of locations worldwide. Pretty powerful stuff there.