Yes, healing is "4" - in the beginning pretty worthless, but in the last 3/4 of the game, you will begin to love it.
Funny though, around 1 hour before I've finished the game, I've found out that I can equip my companions with items. I'll guess if I would have known that before, some boss fights would have been a tad easier...
Btw. I've also found the controls on pc to be pretty good. After I got used to it, I had no problems nonewhatsoever with them anymore. Sure, I would have liked to change some keys, like inventory to "i" or such, but beside this, I found it pretty usable and smooth. Even the camera controls did only annoyed me in hard boss fights, where I had to look around more or less fast.