Not a good place for GA
I lived two years in DXB, bad place for GA for the following reasons:
1) Not professional (schools)
2) too expensive (prices are similar to Europe or even more expensive, where there is no reason to have this kind of price since the quality is much lower).
3) weather: you have two seasons: summer and Hell, forget to fly GA during the HELL season (april to october).
4) flying in DXB: they will keep you with the engine running until they can put you amongst the airliners... in one hour that you are being charged, probably you spent 0.6 of it taxiing.
Masalama habibi!