I'm excited about it. I currently backed it at the $25 level; however, I'm tempted to go up to the $50 for beta access. I've loved battletech since I've been a kid, and I hope it's a great game. I bought Shadowrun: Dragonfall, SR:DF director's cut, and I backed SR: Hong Kong. So far I haven't been disappointed in Harebrained Schemes and Jordan Weisman has been one of my favorite designers for quite a while.
Also, today's update about their plans for the extended campaign, especially the part about contract negotiations excited me.