This pad is called the mondo king for a reason! Once inflated, its 4-inches of thickness makes it more comparable to a mattress than a pad, and it's definitely the comfiest sleeping pad I've ever slept on. The thickness gives you the option to fill it to your desired support level, which I really liked.
First use, the self-inflating function is a little slower, so be sure to give ample time to inflate. But no need to worry, because you can also use an approved pump or blow into the valves if you need to inflate quicker.
Once you've had a good nights rest on the tent gorund, in the back of your truck, or maybe even on a friend's floor, you can release the valves and it deflates easily by rolling up from the non-pump side.
Only downside is the storage size, which is pretty large once rolled up and wrapped in the carrying case cover. It is about as wide as a standard sleeping bag, but the length of two. So I wouldn't recommend for any sort of backpacking, but well worth it for the types of uses I mentioned above. 5 out of 5!