It is our experience that despite what some may believe, group coaching is the best form of coaching. We have found this again and again, not just for our clients, but also in programs and courses we have attended.
The key is to run the group problems properly, which many coaches are simply not skilled in. When done correctly, you'll still get all the information and knowledge you need and would get from 1 to 1, but you'll also learn an invaluable amount from the other group members around you as they share stories, ask questions and so on. Plus you gain additional friends, networks and support which can be invaluable for your success.