Dog walking services

I'm googling different dog walking services in my area to find the right one and I'm reading reviews from other customers too. I'm so afraid of hiring the wrong one, especially one who is not going to be patient with my fur baby and her health condition.

Is there a web site that has real customer reviews of dog walking services and not ones that are put there by the owners themselves? I was looking on Yelp to get a feel for what is out there but I was just curious if there are other resources.

There is a vet tech that works at my vet's and I called her today and emailed her since she does offer dog walking but I have not heard back from her.:( My vet had recommended one other service but I didn't like them too much.

Any suggestions?