It is a tough decision, and I actually have the Hexamid listed in the Gear Swap at the moment, however, the more I think about it, I may end up keeping it anyway. It is a really great shelter, but my one hang up is the mesh floor. It is fine unless it is wet, then it tends to attract a good amount of water, and mud. However, I have learned to just set it up in grassy areas if I am expecting rain and this will alleviate the mud issue, however, I still have to tend with a water soaked mesh. To be fair though, if there is time to let it sit out when it is not raining, a little wind will help it to dry. Also, I have found that the tent handles condensation quite well, even here in the southeast. At times I have felt only slight moisture build up on the inside, but never much at all. And of course with all the head room, rubbing against it is not really a concern...
I have thought about sending the Hexamid back and asking them to sew the cuben floor I have to the mesh, which would eliminate much of the mesh (not to mention, some weight), but I am afraid that water will then run off of the mesh and into the floor. I think that if the mesh were sewn just above the edges so it had a lip this would not be so much of an issue, but being that the mesh is sewn to the edge of the tent, the water runs off of the canopy and right onto the mesh. Also, this will limit my ground sheet size options, although, this is not as big of a deal, but worth bringing up since I have used this tent for 2 people.
Anyway, as far as the new Yama Tent, it does remind me a lot of the Contrail, but of course not exactly the same. I actually like a front entry tent, I like the basic A-Frame shape, I like that it is fully enclosed, and I feel like it will be pretty easy to pitch. It is obviously not a double wall shelter, which some are already voicing concerns about, rightly so I imagine, however, the benefit is that this opens up all of the possible head room there is. Adding in a bug netting under a small tarp like this in the A-Frame tends to eat up a bit of head room... I don't expect it to be perfect, just as my Hexamid is not perfect, but at first glance I feel like it may be pretty dang close, for my taste.