I have used them for several years and so have many of my friends, they are the best I've ever had. There seem to be a lot of names that are the same. I had one a few years ago that always answered with a recording AND MY CALLERS HAD TO WAIT 2 MINUTES TO LEAVE A MESSAGE. The flat rate I have answers promptly, sounds great and takes pretty accurate messages. When I have had issues, Dennis handles my complaint and explains it clearly and gets the problem solved right away. Billing is simple and fair, so i can't say I have had any problems in that area. Usually spelling of names.