I've progressed through the story a little bit and spent my time a lot more in the city of Novigrad, so I think an update is due:
- controls outside of combat are quite bad. Geralt moves like a bull in a china shop, which is fine when you're running across the map, but it gets quite frustrating when you're trying to loot a room with a lot of containers: you run around trying to loot a certain container because the damn button prompt doesn't show up. Controls on horseback are even worse; the horse likes to stall and get stuck in obstructions. Navigating a city on horseback is actually more cumbersome than on foot. The witcher sense-camera is quite bad, as it zooms in too much, and Geralt obscures almost half of the screen as a result of that.
- loot is out of control. I never though I'd ever say this, but there's simply too much and too poor and useless loot out there. 80% of your loot is food/alchemy/crafting materials (I have found the latter two being used rarely). The rest of what you get is most likely underleveled (I know it also depends on what level of enemies you fight, but sometimes I still get underleveled gear when I defeat higher leveled enemies). Spotting looting containers is a chore because of the aforementioned issues with witcher-sense.
- landscapes aren't impressive. Sure, technically the graphics are amazing, and the aesthetics fit the setting of the game perfectly, but I haven't stopped and admired the landscape even once.
- combat is both good and bad. I like the combat system, don't get me wrong, but its almost literally the same as the combat in AC2, which means it has all it's pros and cons: combat is great outdoor in the open, a lot of room to evade and recover; however, it becomes problematic when you have to fight a mob indoors, in tight corridors or really just anywhere where you can easily get obstructed by static items. Something that TW3 does right what AC2 did wrong: no one-button finishing moves. Casting signs is sometimes unresponsive; Geralt'll just stand there and do nothing but take hits while I prompted him to cast a certain sign.
It's a bit funny because nearly all of this can describe my experience with Inquisition.
To touch on some of the critiques:
-My loot buttons show up fine except underwater. You sometimes have to be in a certain position for it to show up and underwater mechanics don't make that easy. The only issue I have with inside looting is lighting candles when I want to loot. I am surprised you have so much trouble with horseback. I find Roach's mechanics refreshing, tbh. Sometimes he does stall, but only if you're trying to make him jump over/or go down things he isn't suppose to. He will also hesitate if there is danger nearby--just like a real horse would do. Maybe I just don't have any issue with it because I played loads of RDR and it has a very nearly identical horse mechanic.
- I have also found the loot to be pretty great. When I was a lower level and didn't have a lot of high-level blacksmiths available or not a lot of crafting materials, I found the weapons and armor I looted to be just what I needed. As I leveled up and came in contact with better blacksmiths and such, the things I crafted out shined my loot, however; for someone who doesn't like to craft or gather materials, the loot is actually pretty good. Crafted material should be better, but the loot you get is very close to your rank, or at least in my experience it has been. You do get a lot of crafting material and alchemy as loot, but I love that as I use both regularly. Do you play on the PC? I play on Xbox One and my Witcher senses work very well and the items stay lit up for a few seconds after I let go of the trigger and doesn't seem to zoom in enough for me to take particular notice.
--I think the landscape is gorgeous. I literally spent a few hours in Skellige in a boat searching all the islands and just taking in all the landscape. Each time a whale flipped up, it was unexpected and once it was right next to me--the sheer size of its fluke was enormous. Every geographical area has it's own landscape and some of it is desolate, but I found most of it breathtaking. I'm sorry you didn't enjoy it.
--I personally like the combat. The finishing moves feel natural and the dodge and roll seem to work well for me, though now that I have my Quen upgraded, I rarely need to dodge unless it's a mob. As far as the signs go: are you letting the meter fill completely up before trying to cast a sign again? I have a friend who said she thought the combat was pretty boring, but she never used potions, oils, signs, etc. She just went at everything with her sword, which I imagine is pretty boring.
Hopefully, you'll start liking it better.