Well I just ordered this yesterday from Xheli.com. Its the EXI 250 and from what I read it 99% compatible with the Trex 250. Frame layout seems spot on to the Trex and I was told they just use a different material. I myself can't afford a Trex kit/combo so I went with this set-up. I did order the Align 250SP motor and DS420 tail servo. For now I'm going to run my TowerPro 9g servo for cyclic untill I can upgrade to the DS410's. ESC is a HobbyWing and lipos are 11.1v 900mah coming from Hong Kong. Between the kit, motor, and tail servo I only spent $145. That sounds better than $340-375