Got access to it a few days ago. I played it for a few hours. Here's my take:

It's just a tps dota

Now, I don't mind that too much. My problem is with the plethora of issues combat has

1. Despite there being damage falloff, you are directly decentivised from fighting in close range. This is because you both have little minions on both sides that attack the enemy and heal you. Why would you jump into that? Why would you give up your source of healing?

2. It's way too easy to retreat. So you just poked and prodded the enemy for 3-4 minutes, finally got into a favourable position, pushed in, and they're already on the zipline out of there. Sure, this is good for you, you can attack their sentinel. But attacking their sentinel isn't fun. It just stands there and attacks your minions. You're punished too much for dying, why would you risk it?

3. The stun abilities are atrocious. Picture this: you and an enemy found each other without support. You're deep in a close range firefight, having fun for once in the game. Then this rando pokes their head around a corner, stuns you, and you're dead before the stun ends. Why is this in any game?

4. Most hero weapons feel like you're shooting wet paper towels. The majority of them are fast-shooting, but not in a good CS way. More like "I sincerely hope this is changed and these are just placeholders" way. The few that actually feel good to play (such as the girl with the green arm or the greaser dude) either lack damage in general or damage in mid-long range fights, the majority of the game

The most fun I had in this game had nothing to do with objectives or lanes or teamwork. It was when I was going between lanes and found an enemy doing the same, causing a close ranged battle. Makes me wish they just made this as another TF2