We took a strategic decision to go strictly ExtJS, but so far I can only say we use mostly ExtJS. I really like it. Most of our clients are big enterprise and a

We took a strategic decision to go strictly ExtJS, but so far I can only say we use mostly ExtJS. I really like it. Most of our clients are big enterprise and all the stuff we do is very data heavy (analytics etc.), so we're happy to pay the licence fees just to see them stick around and support it for a few more years.