Reilly wrote a review of Big Agnes Air Core Ultra Sleeping Pad on October 9, 2017
Familiarity: I've used it several times
I purchased this pad after my 5 year old BA Oak Street finally bit the dust (awesome pad, I'll miss it). This model seems to be made with the same quality. It's lightweight, comfortable, and the new valve is leagues better than the old one. It works well with the pad system of my BA Lost Ranger bag, but I found a major disadvantage when using a different brand bag. Unlike my old oak street, the surface of the air core is really slippery (kinda like a pool float). This summer I used it with my lightweight marmot bag and pitched the tent on a very slight incline. Every time I would move, the bag would slide down the pad, thus, making for a restless night of readjustments. I've slept on greater inclines with my old pad and the same bag without incident problem. So if you plan on using a different brand bag (or one that does not have a sleeping pad system) be weary of the inclines.