I am a huge fan of the TM, mine is expired now though. (Why does Teufelberger say 5yr lifespan)
At work I've been using a Seqoiua SRT since 2020, with the rated Top, as well as a chest ascender integrated. I have two bridges on that, one adjustable with the rolln'lock, the other stock. Great harness for my purposes, which is a mix of arb and rope access, I never liked it much for spur work of far limbwalks, the padding would hurt my hips right where the side D's sit.
Looking at the Treerex next, partly because we get very good prices for Edelrid, and options for saddles with a fall arrest top are very limited. I've tried the Treerex a couple of times, it is very comfortable, I would probably even say on par with the TM. I like that it comes with an adjustable bridge, and the option for a second bridge. Also pretty customizable as far as gear loops are concerned.
Unfortunately, my Sequoia isn't going to last till the updated Treerex comes out next year, that will come in a Size 0 (I'm right at the edge of size 1) and will feature a connection at the back for the Vector Y Top from Edelrid.
Edelrids new Treeraptor was also very comfortable when I tried it. It's more for the budget conscious climber, less options. The elastic underbelt similar to the Notch sentinel is nice though.
One thing both of their saddles have is a super easy to adjust riser between upper and lower D's you can do that on the fly, not like the Treemotion where you need half an hour and some tools to get that buckle to move.