I was lucky enough to hear Rostropovich play the 5th cello suite live once. I would rank his performance a lot better than "fairly well", but tastes vary. Another favorite performance of mine for those suites is Anner Bylsma[1]. He uses a more historically accurate instrument than most modern versions. I don't necessarily think that makes other versions bad, but it does make his (or one like it) worth trying.

[1]: http://www.amazon.com/Bach-Suites-Cello-BWV-1007-1012/dp/B00...