The Espri looked cool, until you realize that the vestibule is an optional 100 dollar accessory that is not included in the weight. Also, according to the pics on nemos website, i think the tent tapers at the footend, so the 52 specified width most likely only pertains to the head end. I'm curious to know how much the vestibule adds in terms of weight...looks like a pretty cool setup since it integrates a trekking pole
My own experiences with a 42 inch footend tent are a bit skewed. I spent the past year or so in a Sierra designs vapor XL. It was 52 inches at the head, 42 inches at the feet, but 93 inches in lengh...same footprint shape, but longer than the copperspur ul2. I'm 5'9", but i've spent many of nights with friends that are 6' to 6'3" We never complained of space and we slept fine every time. Given, my friends and I are both thin. I think the longer length of my tent may have had an effect, so take with a grain of salt. When we laid down our neo airs, we still had around a foot between the end of the tent and the bottom of our neo airs, so we never had our feet at the true 42 inch taper. I no longer have the tent, but I remember being able to lay a 60 liter pack (sideways) between my feet and the end of the tent, so I bet our feet ended more around the 45 inch taper point. IMO 52 inches at the head is plenty of room for 2 people, so long as you are small to medium build. 42 at the feet is enough room for 2 pads to not overlap. If your feet are not shifting off the pad, then I don't think the 42 inches will be that big of a problem. Why not buy at REI.com, use their 20% coupon to save a boatload, and try out in your living room? If it doesn't work, then return it.