Time machine is crap!
I bought an Apple Time Capsule last summer and have been backing up my MacBook Air since then using Time Machine. Until last weekend this approach worked flawlessly and the ability to easily get old versions of a file has been very useful (it has saved me from accidental deletes 3-4 times). However, earlier this week the Time Machine database got corrupted. This is *completely* unacceptable for a backup solution. In fact, I'm outraged that Apple hasn't deviced a more fault tolerant backup solution. No way that I'm going back to Time Machine after this - one failure is one too many for a backup solution!!!
Previously (when on Linux), I used manual rsync which has always worked flawlessly and the backup cannot get corrupted unless the disk fails. I'm now investigating moving over to some sort of incremental rsync based approach.