The listings on Rover are stale, and almost every sitter I contacted either never replied or curtly responded that they are "no longer available." Only a puny handful had any references. When I did finally find someone to interview as an in-house dogsitter, he blew off the meet-and-greet (AFTER the site had already billed my card). I had to threaten reporting the organization for fraud before I eventually got a refund. (If you've ever tried to reach a live person at Uber or Airbnb, you get the idea.) Fly-by-night website trying to replicate the "disruption" model but totally inept at it. Avoid at all costs.
Bottom Line: No, I would not recommend this to a friend