I think the game could've been great and got partway there before kike ownership and decay of the original dev team took their toll.
I personally enjoy how free and mobile the combat is, but it's gone from the unbalanced but skillful, timing and positioning-based combat of the early game to an unbalanced button spamfest.
Writing has always been shit. Even ignoring the SJW presence, it's trash.
Game modes. PvE dungeons were a mess and have been largely abandoned. The best dungeons were added as limited content and were only eventually partially restored as a couple of fragments you can complete in fractals. Fractals are a selection of randomized minidungeons you do over and over and over again for dailies. Repetitive garbage. I didn't bother with PvE raids given the track record, they're supposedly challenging but slow as molasses to release. Game will be dead before the first raid dungeon's done. Some of the biggest world events were actually great. People often point to the marionette fight as the best one, exciting, good-looking, rewarding, and dividing up the map blob into tiny groups who all needed to succeed, creating skill requirement for what were historically autoattack fests. Good world events don't come out often enough to support frequent play, though.
I've only done structured PvP occasionally, alone or with guildies. I used to enjoy it, but as I said before, the button-mashing has killed it for me.
World vs World, where three servers are matched in a FFA across four maps, had loads of potential, and for several years was good just for large-scale open field fighting. It was largely neglected by the devs, and all major updates delivered more bad than good, unwanted PvE content and incentive to turtle in structures with unassailable siege weapon defense you'd need to grind down for an hour. Skill changes also greatly reduced the ability of a small, skilled group to engage a large, disorganized one, and the vaunted "zerg-busting" is mostly dead, only succeeding once in a blue moon.
The art has always been the strongest element of GW2. If the other aspects had a quarter of the skill and resources put into them as art did, GW2 would be GOATAY. Dozens of huge, beautiful maps and dungeons, many of them now lost to their retarded initial idea to allow access to them for only one month after they were launched.
The expansion was ultimately a disappointment. Very pretty maps, some alright map events and one good one, a pretty bad (but less lesbian-filled) story with a mechanically challenging but thematically lame final boss fight. Skill changes shit on sPvP and WvW with DotA ripoff maps to the former and huge, unnavigable siegefest maps to the latter. PvE raid development stunted.
For the past couple years, I've only come back for a week or two every few months for WvW raids with my old guild, and now even those tasteless normalfags are burning out hard. I'll always mourn what it could have been.