One of the issues with the repeater listings is many are out of date. Many people come to mygmrs list a repeater and neve even install said repeater. Others list the repeater and loose interest. Some never even make it to the forums. Its really hit or miss. For me when I get a request I may reply right away, unless I'm busy with work then it may be a few days. I would think if its on the map view and been updated in the last year you have better luck than ones that have not been updated recently. Just my opinion. Do a search on the forums as this comes up often and similar answers are given. One that wasn't mentioned is just because its listed doesn't mean the owner wants folks on it. If its listed as open or travel tone thats different but there are repeaters listed that may not want others on it. I have one such repeater. It was listed so others know that frequency is in use.