I've been studying aikido for seven months. I was amazed from the first move (irimi) at how incredibly natural and "right" everything felt.
I have a bit of trouble with spacial relations, so sometimes I don't get a new move until I've done it maybe 10 times -- but then I understand it and after another few dozen reps it feels great.
The surprising thing is that every so often we learn a technique that feels totally abnormal to me. Koshinage is the latest. I'm not sure yet exactly what it is that throws me off. Once I've practiced hard enough and often enough I can do the "abnormal" techniques, but they never feel as good as the rest -- it's like I have to think about them more so they don't flow as well and become part of me like the others.