Have been using BB since its v.1.x and i have already built some amazing things with it. It reminds me of Borland Delphi when it launched their IDE. It feels like BB is RAD for anything WEB. Personally, i use it to built full systems, not just internal tools.

The rate of growth of the product is amazing and the team friendly and helpful whenever i needed some help! Try it out, and the product itself will convince you of its worth.