Enjoyed it for 10 hours or so, then got a refund on it. Not a bad game, but the mech combat is just sort of meh to me. Too many enclosed spaces to allow for pilot kills on mechs, and seemed far too easy to kill a mech as a pilot. They didn't really feel that powerful to me which was a major downside.
In the end, the most fun I had was playing as a pilot, a lot of times just calling in my mech to auto follow as a bigass distraction. The parkour stuff is insanely fun, but it doesn't seem like there's much more to experience past that. Matchmaking sucks ass, no mod support in the foreseeable future, and very little variety once you play through all the maps a few times.
One thing I will say for it that I thoroughly enjoyed and would like to see in more games is the way multiplayer campaign worked, and the cannon fodder AI hanging out. It was really cool playing through what would normally be an entirely singleplayer story mode in a multiplayer setting, and I thought it worked well (even though at times I'd have zero fuck of an idea wtf was going on). I like the AI because it adds this cool sort of flow to combat, where you can chain together a fuckton of kills and use the fast past parkour movement to pull off some stuff that really makes you feel like a bawss. It also gives noobs and downright terrible players to contribute in meaningful ways in annihilation mode, where they can just run around blasting AI to rack up points for the team. I thought that was a very cool element to having the bots running around.
In the end though, it seems to be Tribes - jetpacks, skiing, vehicles, and CTF, with Mechs added in as, what seemed to me, a gimmick to make it more than just a futuristic parkour FPS. Needs a lot more content and a lot more to do before I'll give it another try.