It’s not much help but I ride a ’12 Element 50 and I have to admit I’m always mighty impressed the way the bike flatters my sh1t riding skills. The rear end is well planted for climbing but supple on the descents. If , like me, you like climbing, getting out of the saddle is no hardship. From what I can see the the Thunderbolt has slightly larger wheelset and a slacker head angle. I chassis has the same engineering as my Element and so I would expect it to perform in a similar manner. I think RM are marketing it as trail/XC bike (my kind of riding).
I have to admit, I’d love to take it for a spin.