RTM was fine for me personally, I didn't use the CD's, and neither did I have a group (most people ran in to get their packs and got out), I did 10 weeks of RTM by myself as it should be (then Christmas got in the way - but by then I had learnt everything I was going to learn about eating and self-control).
It really does come down to the person and learning to think for yourself. I did it pretty much on my own without the help of a lovely forum such as this even!

It all depends on what you actually want as a long-term goal, and how MUCH you want it. Planning ahead is the key. *