Bought for my partner and is much more comfortable than mine from another store.
At my Location (Decathlon Rama4, Bangkok) an Aircomfort 70 = 650THB (=15UKP vs 19.99UKP on your web site) and AirSeconds 80 = 1800THB (=41UKP vs 29.99UKP on your web site).
I purchased this product on 10 Sept 2017 and used it 3 times in total. The first two time were all fine. This weekend, I tried to inflate it for a friend coming over with no success at all. As I was pumping air in, each time one of the 4 triangles of the new system was vibrating and letting the air come out I stopped pumping. Very frustrating!
I'm really happy with this air mattress, which I've now used a few times (albeit indoors). With a double action hand pump, you really can inflate this in 30 seconds (I'm using an Intex pump). Deflation is even faster. The valves and the seams seem very robust. I find it comfortable. Also, it doesn't squeak when I turn in my sleep, unlike my other air mattress.
Rapid infaltion & deflation, good quality, comfy
very easy to inflate