I own a T Rex 450V2 and a HBII. I like them both. The T Rex for the field and the HBII for the house. Sure the 450 is a great helicopter that's what 1000 bucks ( radio, servos,gyro,ect) gets you, My HBII was 200 to my door B/l installed. For the money I'm really impressed. I recomend it to anyone looking to try there hand at a coolective pitch helicopter.