You can fit a 2200mA 3s.. but theres not a lot of spare room.... it's difficult enough getting a 1800mA 3s out
The Blaze flys well, but some people might be a bit disappointed with the motor.
I haven't put a wattmeter on it but judging by the performance... maybe about 180w
You can't really fit a more powerful motor with the limitations of the supplied ESC, so a "bigger" motor would mean a new ESC.
IMO if you really want a Hotliner/Warmliner buy a Mouldie.
However it is easy to fly and IMO would suit most flyers who just want a foam aerobatic glider that won't cost you serious money