I know exactly what you mean, I have several precision,IMAC type of planes(68" Yak & Ultra RC Giles)but they can have problems too.The Yak is great for rollers & little mixing is needed but it is not easy to hover,I haven't flown the Giles yet but expect it to be faster than the Do in all respects.What makes the Do special IMO is the cost/worry factor is low,it will do most anything at slower speeds,looks different but at my level,its helping me learn to do all the stuff you usually only see in videos. Even if its only a transition plane, its hard to ignore someone doing rolling harriers,harrier landings,hovering torque rolls all day,HA KE harriers & all the "normal stuff":flat spins,blenders,waterfalls,walls,ect.....Hell, come to think of it,only one or maybe 2 guys at my club can do some of that stuff with the high $$$,IMAC/precision/3-D planes. In fact,some of the guys in my club who are bashing the Do could benefit from flying one!