They're quite large and bulky (devkit at least), imagine an extra couple of inches on a move controller. I imagine if you were sat at a desk they may be too big, but if you're playing in a space they don't get in the way.
They are very intuitive though. You don't even need to see your hands in fact. In the game I was playing you couldn't see your hands, but because they're relative to you I was reaching around and hitting buttons and flipping levers in seconds. I could even juggle-ish. Imagine you're interacting with everything using your fists.
Now developers can interpret movements to decide what your hands are doing, and I imagine they'll get pretty good at that. So maybe you'll eventually not even notice you have no finger movement. I've not tried the oculus touch but that extra dexterity may feel as big a leap as the vive does right now. I could see it, but I'm suspicious about how much they'll cost.