We have used pet sitters a couple of times, and sad to say, both times were disasters. The good news is that the dogs and cats were fine, but the house!!
The first one I used didn't do a thing except sew and feed the dogs. She didn't pick up poo, walk the dogs, make the beds, pick up the mail or newspapers, water the pots, etc. It was AWFUL to come home to our bedroom (which I had asked her NOT to use!) a freaking mess! She said the cat wouldn't let her make the bed (and our cats are outside cats!)
The second one walked around in her bra and panties which shocked the gardener and house cleaner
!! She also used every room in the house, entertained friends, gave house tours, took care of 6 other dogs HERE!!! who sat on the furniture, pooed (which she didn't pick up!). She also asked the lady who comes in once a week to do her laundry and change her bed (which I don't ask her to do!!!)
From now on, I'm going to leave the dogs with my friend who has 7 Newfs and just have a pet service feed the cats. Never again!!!! AND we did check references. Did everyone else lie? Or maybe I just look like a guppy!!!
Hope you find someone who is far, FAR better than we have!!!