I did this sonata 2 months ago. It's amazing. One of the most personal sonatas Beethoven wrote. Anyways, here are a few suggestions:
1) Choose a calm and moderate tempo. I've heard lots of people playing it either too fast or too slow. It should be calm andpeaceful, however moving tempo.
2) Try to maintain a cantabile singing tone throughout the piece. This might be a bit of problem in the runs, but with a little practice you will nail it down.
3) I suggest you maintain a sense of tension in the Fminor part till the fats notes in the left hand come, and also the modulation to C#minor must be played calmly and quietly in general. Don't rush to finish it.
As for the recordings, I have 4 sets of this piece: Brendel, Pollini, Kempff and Arrau. I suggest Kempff and Brendel.
Good luck with this piece!
