Just some thoughts I had:
Hammer feels really clunky at first, but once you get used to it and start to develop a pattern it becomes much nicer. Hammer 2 can deal some massive damage if you line everything up nicely. Hammer 3 feels a bit slow for what you are getting from it, I don't see too many reasons you wouldn't use hammer 2 instead. Hammer 5 is your interrupt, and feels kind of slow.
Mace and Axe feels really nice in terms of speed and reacting, but actual damage is lackluster. Its clearly designed as some part of condi build which may be the problem. Want to add that the closer feels exceptionally nice.
Jalis Legend seems solid, Malyx not so much. Both seem to be highly group dependent for full efficiency. I could never get Malyx into a decent pattern that didn't put me dangerously close to death because of the large number of condi's I was trying to pick up. Its a slight pet peeve, but Rev really needed some sort of passive movement booster.
Gliding is exceptional and feels organic and euphoria inducing from the new freedom. No gliding in the rest of Tyria is going to make me sad I can already tell.
The map feels huge, I mean maybe 4-5 times larger than SW. This is mainly from vertical differences, and gliding speeds up the time it takes to traverse the map nicely. It can sometimes be a pain to get where you want to quickly because of the vertical movement, but I suspect with the placement of mushrooms and gliding it will not be so bad in the end.
Wyvern fight is fun. Not sure if it was a bug or not, but the wyvern itself seemed to glitch into different textures or go invisible periodically.
Map itself is beautiful, but for Anet that is to be expected. In terms of Quests too much was going on at any time and the size of the zone means that you cannot quickly get to where you need to be to help.
Overall it looks really nice, and I suspect that once people have had more time to master the revenant (it clearly has a high learning curve than many of the other classes) it will become much better liked.