I have both the DR-1 and QR-1 choppers. After a couple of problems (broken flybar on the DR-1, and a bad circuit board on the QR-1), I'm having fun once again. I like the QR-1 most because it's best for flying indoors with relatively limited space.

However, the larger Alias chopper, which should arrive tomorrow, will present an interesting problem, as it were.

As I look at it, size won't matter as long as I'm able to control its flight. Once I master maneuvering all three choppers in a closed space, I'm gonna have a blast in open spaces.