We don't often have need to use petsitters - generally our built-in help (that is, the kids) will take care of it for us when we're headed out of town for a day or two. If we leave for longer, then the in-laws will often handle the task, just as we do for them when they leave.
But there are times when you need someone else to do the task, and so we continue our search for the perfect petsitter. Unfortunately, we are still looking, because on one of these trips, we went to the mountains of Tennessee - not known for stellar cellular coverage. Only as we arrived, at about ten pm, for a weekend away, did we get a call to say that the sitter was unable to get our four-pound terror out of the closet, and would not only not be letting him out for the night, but would not be returning the rest of the weekend.
Luckily, we were able to get a hold of one of our kids, who was on a sleepover at a friends, and have him (and the friend) come over and take care of the dog. It meant a slightly less than easy weekend, waiting to see what two teenagers had in store for us when we came home - but at least the dog was there to watch them.
In the meantime, QCP may not be the best choice if you absolutely, positively have to have your pets taken care of while you're out of town.