I've been on three tours with Edelweiss, European Alps (Austria,Germany,Italy,Switzerland) the Canary Islands and most recently Norway. They run a tight ship and having a local/guide is nice for a little history and local knowledge of the days stops and sights. Well maintained bikes and usually supplied with luggage so you can take rain gear etc with you while your personal luggage is either in the hotel or in the 'chase van'. Not cheap but well worth the cost. As for the pace, smaller groups are limited only to the slowest rider, and larger groups can split into two groups when there's two tour guides riding. All the guides have been willing to help plan/share the route if you find the pace of the group to be too slow allowing you to go off on your own and rejoin the group later for lunch/dinner/coffee etc. Only once in three tours did I feel the need to go off with the 'fast group' and break from the tour for a bit. but we had a couple of riders that were not comfortable passing slow moving traffic and that will drive even the most sane man to drink.... Mostly the tours traveled at or above the posted limits on the roads we were on.
The biggest praise I can give them is that I plan to do more tours with them when I can.