In my experience most customers are pretty tolerant as long as you immediately fix the bugs. If you take your time fixing the bugs they'll start wondering whether you're still working on the software. Not a good situation. Customers want to be sure that you're on top of things.
For bugs in web services, how much time do you think is feasible (that you can fix bugs in) before customers get disappointed and starts to leave your product if you are unable to fix the bugs.
I don't know. I almost always fix the bugs immediately (same or next day). If I can't do that in that short time frame, I'll explain it to the customer and ask them to give me a couple of days to fix it.
