When I go to the end of the climb on my local after work loop, the first thing I noticed about the Spartan 29 was responsive and poppy it was when I put any sort of preload into the suspension. On a relatively flat, traversing section of trail, I was able to pop off little lips and flick the bike around like it was 120mm travel trail bike. The suspension is super progressive, so you have so much platform to push off of and hop the bike around the trail. The Super Boost spacing makes the rear end feel very precise, and it helps the rear wheel track through the chunky stuffy flawlessly. When you get the bike point down hill, it feels very stable, but it doesn't hug ground quite the same as something like a Pivot Firebird 29. Personally, I like that it is easy to get off the ground, but others may like something that is a little plusher. I felt very comfortable in cockpit. I wasn't to cramped, but I didn't have to get way over the bars to maintain traction on the front end. The 77.4 degree seat tube angle on a large in the high setting had me feeling very centered on the bike for the climbs, and the short offset fork kept the front wheel from wandering around too much.
All in all, if you want a big, 29er enduro bike that is lively and likes to get in the air, while maintaining high speeds through the chunk, the Spartan 29 is an excellent choice.