Gilgamesh is alright. I know some good people and I know some obnoxious douchebags. The marketboards are...kind of all over the place. Lots of people with lots of retainers means prices are a bit low, both for weal and for woe. The fact that it was raiding heavy until cross server raids means there are more of "those" types floating around, but if you stay out of Rhalgr's Reach unnecessarily you should be fine. Maybe Limsa lower decks too at certain times. Its still not all that bad though. I don't figure there's much benefit in going somewhere else, it's likely similar, and I've already got a house I busted arse to buy and furnish. That said, in the same vein, unless you have friends here already, there's probably no point in specifically coming to Gilgamesh either.