I felt awkward and uncoordinated at first, but slowly made progress.
My swimming goggles had been fine for breast stroke, but when turning sideways to breathe, they quickly leaked. So I went to a store, tried on all models, and then got the one that seemed to cling to my face best. It's a completely transparent one – not the coolest-looking, but I decided that I totally don't care about that when I'm learning. :D And the underwater view with this one is great!