Its really what you make of it...you would live in Male which has very limited 'expat' style accomodation, but many floatplane guys share if they are not with partners etc.
Of course no nightlife as such but you would spend plenty of time at the resorts on turnarounds and overnights - not sure TMA's allowances are but the resorts are genrous to the crew.
Most guys stick it for about a year and then start to go crazy - things can be frustrating trying live a normal life - supermarkets arevery limited and decent produce is minimal (apart from on the resorts).
I can thoroughly recommend it if you are the open minded type and want to sample a unique aviation environment.