My group ride opportunity is limited because I can only do longer rides on the weekend and my wife usually needs our shared car to work on the weekends. I've found one group that leaves near my house but it is not a no drop ride, their ride includes about a 6 mile long climb and it seems most guys avg 17-18 mph +. So I envision myself getting dropped somewhere in the first couple of miles of that hill and never seeing the guys again. I'll probably ride alone for a few more weeks and then try to join them.
I do ride with a few other people once in a while. Road with a friend that is faster than me last week and of course I hit many PRs trying to keep up with him