Haha...I couldn't resist the newer improvements anymore and just got an updated Notch and will sell my old one. You interested in it? Sounds like you'd like something with a little more space though if you're looking at the X-Mid 2. I have an original model of the X-Mid 1. It's great except it had some weak points on it that were corrected in the current models and I prefer the smaller footprint size/space that the Notch takes up. I can fit it in spots that are more limited in space and thus many more spots to choose from than what I could with the X-Mid. I'm not a very big guy either, so I don't feel too claustrophobic with the Notch. If you are looking for a bit more room and space, the Stratospire 1 from Tarptent is a great one to consider because it will actually fit two standard size pads in it, making it effectively a small 2 person shelter, and can shelter/sleep 3 people in a pinch with the fly only set up. The Durston's X-Mids are great though, especially with the things corrected from the original model, and you get the benefit of not having the material stretch since it's made with polyester materials and not nylon.
With my new tarptent, I opted to stay with the Silnylon over the "Li" DCF version. Couldn't justify twice the cost for only 8 oz of weight savings and the convenience of not having to tighten down the tension after it stretches. Maybe if I were a thru-hiker trying to preserve calories day after day.
All true, but if you're careful with site selection, you can greatly minimize the amount of condensation that forms. I've actually had more nights than not where condensation didn't form much at all when sleeping out in my Notch. On the new one I just picked up, I opted to get the partial solid inner to try that out. It's now got a solid top along with the solid bottom panels that should prevent any condensation from dripping through what would otherwise be mesh (something I never had much experience with anyway) as well as protection against higher winds and any intruding splash back in a big down pour. This way I can feel confident leaving the pitch-loc ends open for the added ventilation they provide as well as allowing the walls of the fly to stand a little higher off the ground. I did enjoy the bigger views afforded by the full mesh of my older tent though on clear, calm nights when I could pin up all the fly doors. The new ones also come with apex guylines pre-installed, so that makes it convenient for giving it more strength and stability in higher wind and snow situations, not that it was difficult to add your own guylines as desired.