We have a pretty complex application to be built. Planning to use EXTJS4. I have a team who is well
versed with coding EXTJS3 style. We are researching on MVC feature of EXTJS4 and whether to go that way or not. Want to add that we will have really complex layouts and pages. Going through first MVC article I feel that MVC will needlessly make everything more complex.
Really need inputs from ppl who have built huge applications using MVC feature of EXTJS4.

Please help guys!