You do know, I hope, that it's only going to effect your debt to credit ratio for the company that they report to, in this case TransUnion. It won't have any effect at all on your ratios with Equifax or Experian.
That's why, with their $150 or $250 sign up fees, most of these things are just plain rip-offs. They do not mention that their "credit" will only effect one out of your 3 credit scores. At least they don't mention it where most people would notice it.
This one, however, charges a small enough fee to make it worth doing.
Actually, they might even have something decent in the way of computers.
I had just skipped through pages and sort of randomly grabbed a few things. If you sign up and look at everything they have, you might possibly find something worthwhile.
Good luck.