I have an M100 original. Most comfortable stand I've ever sat in. But, although it can be used as a mobile setup, I think there are better stands available for that purpose. I've used the LW sticks and millennium combo for 5 years or so... I like it, but there's room for improvement. The stand is not heavy, but it's just large enough to be cumbersome. If I'm hanging a set that will not move for a few days then I have no issue setting up the M100. But for a true run and gun setup, in which I could give two shits about comfort, I'd opt for something smaller and lighter, with a quicker and quieter attachment system.
I should add this, though. For the purpose you stated... Leaving brackets attached to trees and whatnot... It's the best option available. If you've already got sticks and brackets in the woods, packing in and attaching a M100 is a piece of cake. That's the best application for that stand IMO.