Just a few of my personal thoughts on Madtrees Tarseer Hammock.
Just as easy as a normal hammock to set up, just one extra suspension line to secure.
Mine came with half dyneema & half flat webbing suspension, as you can see in the pic below.
Easy enough to replace, so you can customize the suspension to suit yourself.
If you can't find 3 trees just use 2 as normal, just add a spreader bar/ tree branch, hiking pole etc, at the head end.
Purchased a 2 piece spreader from here. . http://www.questoutfitters.com/tent_poles.htm
. Easy. No shoulder squeeze.
I'm a side sleeper & the tarseer provides a comfortable, almost flat lay for me.
Similar to a bridge hammock but with a difference, wide at the shoulders, tapering down to the foot. (imagine a wedge shape)
Just make sure foot end is high enough to get a flat lay otherwise you'll be sliding towards your feet.
I sleep hot & just in a pair of boxers, so for me, in a sheltered spot, it's good to it's rated 0c (32f) ...on a exposed area with strong winds,
it's going to blow all your trapped body heat away, so lower/enclose your tarp, add a undercover,
wear some thermals etc etc, or move to a more sheltered area. You know the drill....
If you want to extend the rating just clip on a UQ, or lay on a emergency blanket, wear extra thermals, balaclava, gloves etc etc...
I use the JRB 'Nest' from my HH Explorer for added warmth and a DIY undercover to block any heat stealing breezes.
Works well. Takes me down to about -10c (14f).
The XL size...suits my 6ft, broad shouldered, beefy 100kg (220lb) body, with room to wiggle.
Quality workmanship, lightweight, 3 season...
Not suited to the Tropics.........