"And I can't see how you'd need two vestibules (or two doors) in a 1P tent."
Scarp. Until you've experienced rear storage, and had the full front vestibule for cooking, eating, and getting in and out, you haven't experienced the best that a solo tent can offer. All that front vestibule space is not so great if you have to clamber over and around your stuff (pack, camp chair, footwear, sopping raingear, etc.) to get through it.
"The Notch is a great shelter, but I personally would prefer bigger inner floor space."
That's what you'd get, on the Moment as well, were the carbon struts longer as earlier noted.
"I didn't have problems brushing up against that rear wall."
A number of folks have, and have posted about it here. Wouldn't it be nice to have a single wall tent that you don't have to constantly 'wipe down' inside.
Franco - it was election night in the USA, I had been celebrating, and shamelessly allowed myself to to drift once again into heretical observations about a TarpTent. The devil made me do it.
On a more positive note, I've been corresponding a bit with Roger about Warmlite's self-touted experiments decades ago with Mylar laminates to reduce condensation on its single wall tents. There were problems with delamination, and all was soon forgotten. More recently, Cubic Tech has been more successful with laminating Mylar with high tech fibers, and there have been a number of posts observing that less condensation has occurred with Cuben fiber single walls. But I think having your head, foot and sides protected from condensation in a single wall tent is still a big plus.
Sierra Designs tried what some refer to as a 'hybrid' between single and double wall. One iteration was called the "Baku," and another 'Velox,' I think. They got a lot of complaints about condensation also in these tents, and discontinued them. No matter what you call them, it's just possible that with vented netting walls front and back, and vented netting at head and foot as on the Moment, good shoulder and headroom, and a top-vented Cuben single wall canopy, condensation can be reduced enough to make a tent as comfortable as a full double wall. It's worth trying, I think, to cut out the weight of a full net inner. And the netting that remains is doing double duty to keep out bugs and provide access to entry, exit and storage.