We have this extra bed for emergencies (and several guests in the house) bought. The air holds very resistant - even over several weeks (it has to be pumped in very little). The quality is very good - but you pay for, but also 1/3 more than other air beds (even from the same manufacturer).
I can say nothing about the long-term quality over several years. This is the time - and pump several times and put together - show.