Not him, but a few things I would say:
Third skill spec slot opens too late, you get it at 20, but you probably want to be able to spec into the new skill from your class, which now unlocks about 5 levels earlier - would feel a lot better if this was unlocked earlier.
Experimenting early is brutal - you get very punished when you only have 1 or 2 skills, and reset it because you want to try something else - minimum levels/levelspeed up should be much higher early on, when you want to try things out, without having to wait several levels to see what things are actually like - similarly testing out nodes and having to back out the whole level is very painful early, and if that could be improved/the impact reduced early you could get more exploration.
If there could be some basic default loot filters added to choose from, this would be a huge help. I dont necessarily want to go through and select for example all the minion bonuses to highlight a certain colour ma...