I agree with the others. I subscribed to TGM, Ridemax, and Touring Plans because, well, its my first trip and I wanted to get a taste for all of them to make sure i didn't miss anything. (And I'm an OCD planner - LOL)
By far, touring plans is the most valuable of the three.
I sent a question to TGM support to ask about TSM and I didn't even get an email acknowledgement response, that was enough for me not to recommend them. Not to mention, the outdated information. If its a forum you want, disboards is better than the TGM forums. As a newbie, some of the information was helpful, but it was all information I could've easily gotten here as well. Definitely not worth it, to me.
Ridemax, doesn't include Sundays in their touring options for WDW so you have to pick a "like" day. In addition, if you have an early ADR before park opening, you can't add it into your plan. For example, we have an 8am ADR at Tusker House on our AK day. And, because I couldn't specify that we were starting in the back of the park, the touring plan it created really didn't do what I needed it to. It also wouldn't let me specify parent swap, which is kind of a big deal for us since DS is 41 inches tall and we need to work around that in all 4 parks.
With touring plans, you can create your own custom touring plans, use plans that others have created and published or the standard plans they offer. In addition, you get the crowd calendar and the per park crowd calendars. To me, it is by far the best value....not only that, but its the cheapest!
Hands down, touringplans.com is the best...