They look brilliant. We're in a similar position with our Sprayway Valley 6 - just too much hard work!
I saw the Airbeam tents at the LCS and I was a bit dubious at first but then when you see them up, they look very sturdy and well made. They really do go up as quick as they describe. The beams have an almost "bouncy castle" feel to the plastic.
I'm going to give it another 12 months and wait for the prices to drop and any flaws to be ironed out before buying one, ready for next year's summer trip.