What should next step-up from kk2.0 be? DJI, APM??

I have a kk2.0 but would now like to upgrade to the next controller with GPS...

Someone said something about MEGA?? (not sure i have name right).
APM 2.5
DJI Naza (what version?)

Out of all the flight boards out there, what is the next best step to add GPS, functionality like hold, etc that won't break the budget.

I don't mind giving a little extra for feature set.
 

xuzme720

Dedicated foam bender
Mentor
I did the multi-wii and flashed it with Megapirate firmware. gives you all the functionality of the APM boards without the expense. It does take more tuning though...
 

RoyBro

Senior Member
Mentor
Hobby King has an APM knock off for not too much more than the multi-wii with Megapirate.