We do! I love that I don't keep spending money on disposables and filling up landfills.
Cannot recommend Crunchy Clean enough, first off. That's the detergent we use for them. I have about 35 bum genius, and for about a year they worked great. Now the velcro is not sticking well. I hear they can be sent back and replaced, but that would be inconvenient.
If I ever buy more I will get some fuzzi bunz, they have snaps and seem to hold up better in the wash.
If you have more questions, let me know!