I have personally never used them my neighbor I have never met before used them while they were out of town this weekend. The lady took the dogs for a walk and they got away from her at night and it took 5 minutes to get them and have been walking the dogs around for about 30 minutes looking for someone and couldn't find anyone tried calling the number on the tags again and finally got in touch with them and come to find out the hired someone on rover but tell me why there were 3 people at this ladies house if they hired 1 person to care for there dogs! Another reason I only trust a few people with my dogs and my kids so Rover you get -5 stars from me!