Questions about Mesmer!
I don’t think Mesmers are in a great spot. To focus on WvW, they have a few good roaming builds but have trouble catching opponents. When following the zerg they have a few cool utilities to bring, but you don’t have great AoE when you meet another zerg.
They’re fun to play in PvP, but you generally have to work a lot more for each kill than every other class would. In PvE there are a few dungeons/fractals where their utilities really shine, and I would say that is where they get the most appreciation.
The biggest problem is the lack of support the class gets from A-net. There seems to be a rather large disconnect between the mesmer playerbase and the developers, and we have had quite a few good mesmer players quit.
If you love the class itself, I would play it. If you just want to play the game and perform well, I might roll something like thief.