I bought a Vango Edoras 400 a couple of months ago on eBay, unused. It’s brilliant, although they’re pricey when new (but often on sale).
It has two sleeping pods with “black out” liner, although they’re still pretty light inside on summer evenings, and it’s easily tall enough to stand up inside. It was actually really easy to put up – my 4 year old loved helping with pumping up the beams and, yes, 7psi is the recommended pressure. At that pressure they were stiff and solid and held the tent up very well – fortunately we had nothing worse than some light gusts of wind (although absolutely torrential rain) to challenge it, but it felt like it would withstand some mighty winds.
It was so much less faff than an equivalent solid-poled tent I’d definitely recommend it, for speed of pitching and convenience. It went up – honestly – in about ten minutes and was easy to take down, although completely removing the air from the beams (and the rest of the tent) and rolling it up took a few minutes longer than expected.