Self inflating is an awesome feature. So far Ive spent 50 nights on this pad and I love it. Light weight, comfortable and warm!
Sometimes, especially when its really cold the self inflating feature needs a little help by blowing into the pad. Not terribly bad but a little annoying.
Warm, comfortable, large is long enough for my 6'5" frame, and packs up surprising small.
It's jolly expensive compared to a lot of its competitors. But that is the cost of having what is arguably the best lightweight sleeping pad on the market.
Nothing I've tried matches the Level of quality, warmth, and packability. Some come close but just don't measure up.