I've gotten a chance to play. The game felt good and I am terrible with a controller. I used to be good at cod4 but it's been a very long time since cod4/mw2 and I have barely used a controller since then. There was a lot of things that felt weird at first, but mainly due to using a controller.
It's hard to translate the console experience into a PC experience. FPS is just that genre where it's entirely different. Plus my inexperience with controller is a burden in itself.
Pilots:
TTK in general felt fine.
Hipfire could be more accurate, but it's pretty acceptable. I mostly stuck to the AR and SMG.
ADS could be a little more accurate on the AR. Felt like I was cone of firing people even at medium range using ADS and that's nasty after playing games like DB + OW. At long range it felt like there was too much RNG.
Seemed like there were a couple OHK weapons that also had high rates of refire, I'm not the biggest fan of that.
Titans:
The big ass lazer beam from the one titan felt really too easy to utilize.
Scorch ended up being my preferred titan, despite lack of mobility. I usually prefer highly mobile, like the stryder, so me enjoying the slow guy is a big change of pace. I think this is because his weapon was cool as hell, as was his AOE trap thing that you set on fire. Someone came at me with the chest laser and I really did him over with that trap.
Honestly, titans felt good overall. I didn't tinker much with the edits, pilots too.
Tools:
Grappling hook was a little underwhelming, but probably because I can't move the same way I can with KBM. I still like the grappling hook anyway. The sonar knife was nice. Preferable to the sonar in TF1. No one brought this tool up, it's very nifty. I assume it works for teammates as well. And no, I don't think grappling hook should be default.
Sliding... was hard to utilize as a maneuver to keep speed up. Likely a controller thing again. But sliding to then aim was actually quite nice. I can't wait to use this on PC, along with the grappling hook.
I wish the test phase would let me try whatever, but I guess they want feedback on progression as well. I would have liked to try the hover, but I only had a limited time.
If I have my new PC by the time this releases, it's definitely day one, just like TF1 for me. It may not pass OW in terms of popularity or gameplay, but I'm ready to jump in.