"I've been using the AirCello on every flight for a couple of months now and I'm genuinely impressed. My hips don't ache the way they used to, my lower back is fine after a long trip, and I've stopped shuffling around trying to get comfortable. The upright part is what I didn't expect. It holds me in a proper position instead of letting me slump sideways. It inflates in about ten seconds and packs down flat. Overall, I'm really happy with it and I won't fly without it again."

"I've been using the AirCello for about a month now, mostly on trains and shorter flights, and I'm definitely noticing a difference. The seat doesn't dig into me the way it used to, my lower back is fine after a long trip, and I'm not shifting around for hours trying to find a position that works. Twenty seconds to inflate at the start of the journey and then I forget about it. It has earned a permanent place in my bag."

"Excellent piece of kit. The build quality is impressive, the surface is soft rather than shiny, and it stays put on the seat instead of sliding around underneath you. I've noticed I arrive without the ache I'd started to accept as normal. The thing that sold me was the valve. You push to seal and pull to release, so there are no fiddly caps and no losing air halfway through a flight. Highly recommended for anyone who travels a lot."

"I'm 43 and I'd got used to arriving somewhere feeling stiff and sore. I've tried other travel cushions before and given up on all of them, they were bulky and they never really helped. This is the first one I've actually kept using. Four flights in, packing it is just part of the routine. Nothing dramatic happened, I'm simply not spending the last two hours of a flight trying to get comfortable."