I am actually really enjoying the game (even made it through Grandmaster), but man, it is really frustrating at how much balancing it needs, though. Some of the units, the decks you play with:
Bulwark is by far the best deck you can play with - Savage Fury and especially Hive Mind seems so much more draw dependent, it's insane. Chaos is the luck of the draw, so whatever (more RNG, yay!).
I hate the fact that you can't switch at least couple of cards in those decks when you begin a new map (Prince Stennis is actually worse than the Bronzes that do the same as him because of the 1 point of handbuff, for an example) - this restriction makes the game way more repetitive than it could be.
I' won't bitch about how insane some of the enemies can be, especially on higher difficulties, because the balancing of the difficulties is the one thing that really drove me insane and is actually the thing that exacerbates the problem with the nemies - the difficulties options are way too restrictive and punishing for what you are up against (aka cheating AI).
A player icon on the map or couple of different maps would be fine to add and I hope those will be added at some point, but this is the least of my issues, like a I stated before. I still like this better than the current Gwent, though, so that's at least something.