I agree, I can't say I like the expansion. There are some nice parts, like their solution for adding classes. I think that has alot of room to build on. I like the idea of masteries but there should have been tons more to pick from and an unlimited supply of points, imo.
I did not like the new maps, they are less for exploring (though there is some) and mostly just build to support their big meta chain. SW and Dry Top took that direction too and I was not thrilled by those either. I think it's beyond lame that they declare fractals as their big pillar for group content without actually adding any new fractals. I know I should not compare it directly to WoW because Blizzard gets sub money, but it feels like in the last year+ Anet/GW2 has actually delivered less content and features then Blizzard with WoW (looking at both expansions and game updates). Being slower then Blizzard - that's a pretty sad state of affairs. Especially so since frequent additions were a hallmark of early GW2.