This is a good product, but there are a few things holding it back.
First, it's not terribly generous with stuff. I mean, it's a quick-start, I realize, and free. But I have a copy of the old MechWarrior 2nd Edition game, and I am not really enticed to upgrade by this. I mean, it's not bad, but it's nothing exceptional. The problem is that it just doesn't have anything I couldn't have guessed at, which may be a sign that I'm too hardcore when it comes to Battletech.
All-in-all, it's a good quickstart, and it'll run you a game, but I'm just not sure if it's enough to entice me to buy. Still, the rules are fun, and easy, so there's no reason to jump in, it is free, after all.
[4 of 5 Stars!]