Haven't played all that much, but I gotta say, what is it with these k&m controls? It feels like one button does five different things, depending on context, sometimes resulting in me picking flowers in middle of a fight. Ranged controls are bonkers, with some really awkward buttons required to perform even the most basic tasks. Oh, and can't pick diagonal items in the "quick use wheel" with mouse. Diagonal is hard, kay?
Also, beginner weapons feel really weird. I switched from basic s&b to long sword and it feels like I have to sharpen it every other combo, while the damage isn't really that impressive. Sure, I'm new to this, but it's really awkward to have stuff break so fast. Especially when some random shitty critters join the fight, wasting even more durability.
Performance is a really mixed bag. It seemed fine'ish at first, but the next day it was dropping by 20-30 fps at times, and finally completely crashed in town. Supposedly Nvidia screwed up their drivers, but still. The graphics don't seem to be that amazing to result in such performance.
Either way, I can see why so many people have issues... and I haven't even tried multiplayer. It's good that a popular franchise has finally made its' way to PCs, but you'd expect more effort from the developer. This is not some tiny indie studio that can barely afford a port, but a major company. The game itself feels quite good, but the port needs work. Good thing BFA is nearly there, so Monster Hunter can wait for a patch. Or at least better GPU drivers.