I have the walkera #35 and just learning to hover in different directions with it. Need to adjust it carefully and it will fly great, even when it's a bit windy outside. If you are trying to fly the heli with the 650mAh NiMH battery which is included you will be out of luck though, works only for sliding on the floor. I am hovering at an altitude of about 1 meter ~ 3 feet and it took a while for me to get there, mostly because I didn't dare to give it some throttle.

Thanks to RCU posters for all the tips!

/Pasi