These particular beds have some mixed reviews. Some say that they're amazing, and others say they're a bust. The common thread, when/while they work, they're comfortable (recommended to put a memory foam topper on for colder months, more comfort). The longevity of the mattress is questionable, most negative reviews are from short ownership, having faulty beds from the start. So to break it down -
Pros: Comfort, mattress that inclines, good customer service as far as replacements go
Cons: Heavy (around 42 lbs), takes up large space when being stored, common leakage with air mattress, not meant to be slept on daily/regularly
One review noted they last about 5 years, but this is contrary to those who had wear/leaks much earlier on.
So, if you are into air mattresses, and aren't going to use it all the time, don't mind having to do replacements, get one! However, if you're weak, have pets that are going to want to jump on the mattress, live in a place with no storage, and want this for travel, you're better off with something else. (Memory foam sleeping bags, anyone?)