I love that it's easy enough even as non-technical people like me use them! It has saved us from having multiple providers with different names/domains etc., which was always confusing when we had more than 1 client or project at once - now everything just works together seamlessly (and saves money!).
There isn't anything really bad i dislike so far but there might be something you're not aware off yet? Definitely try out their free trial first before committing yourself because some things may take longer time then expected while others will work right away!! We've been using this service since 2014 in all projects and have never regretted doing so.