I've never been a member of Insider but have been member of both Scout and Rivals. I dropped my premium Scout membership this year because the TCU site has no mod(s) and is floundering bad. You can still get on the Scout message non-premium and the TCU message board without a membership (or at least I have been able to). Routinely check out other message boards and can post.
I am still a premium member of the TCU Rivals site. Membership is strong and growing. Two mods do a bunch of work and provide good updates on recruiting. Mecerdes Meyer (former FWST Frog beat reporter) is covering basketball. Matt Stepp, www.theoldcoach.rivals.com is providing a bunch of info on high school recruits/games that he covers each week. A membership also gives you access to The Old Coach.
Only one way to go, IMO, if you are willing to pay 10 bucks a month. BTW, buy it a year at a time and it is about 8.33 bucks a month.
My 2 cents.