Place is mainly full of French tourists and expats, from the moment you land you see lots of old french men with young black girls all day and night.
Nightlife is in Ambatoloaka. There are 2 Bars getting busy in the evening then when they close people move to a club down the road which stays open late. Place is full of girls, ratio very high, mainly small slimmer types but the odd thicker girl, black/mixed race but a lot have east Asian features. Can also use badoo or Facebook to find girls or just say hello on the beach/street. Very easy. You get approached a lot here or girls try get your attention, does get annoying at times and they ask you for drinks all night. Think 650ml bottle of local beer was about £1.5 in those places.
Market price 30k short term (£6.5) and 50k long term (£11). Though I always tipped 10k (£2) for very good service and I wanted to repeat. At first I was confirming price and time as I would in Morocco to avoid problems, but after a few days it just didn't seem needed. Girls all very good natured, not a hint of a problem from anyone so I started treating them a bit more normally, chat (well they mainly speak french so not much), dance then bring them back (everyone knows the deal) and just sit 50 or 60k next to their bag in the morning and they were always happy and want to meet again. Hotels take the girls ID and keep till she leaves.
I can give more specifics if anyone happens to go.
I prefer the nightlife and look of girls in east Africa and that's much less remote so doubt I will ever return here.