Firstly I would like to say that I have never flown a micro heli. I have considered it and done a fair amount of research.

My research came up with the fact that the micro helis are very unstable. The majority of them seem to be pretty poor straight from the box. Most need to be heavily upgraded with brushless motors, direct drive tail motors, new speed controllers and decent batteries (Li-po).

This all leads to a very expensive little heli. (probably as expensive, if not more than a 30 nitro)

I have flown nitro helis and larger electric helis (Raptor 30, Ergo 30, Nexus 30 and Mikado Logo 10 electric)

The Logo 10 is a little smaller than the others and is only slightly more 'twitchy'. It would probably be OK for a beginner. However to get decent performance it has top of the range components and easily costs twice that of the Raptor.

The nitro helis can seem intimidating. They are noisy, smelly and can be messy. However they are quite stable and suprisingly good value for money. Crash costs are probably slightly higher than the micros (but a lot less than the Mikado) but you will not crash them so often.