I've only had the Airflex 2 weeks Rob and I've got a love/hate relationship with it.
The 3rd vac is a massive step up from the Ninja and I will soon have to get a glide, plus the solution tank is bigger than the Ninja, so not as much filling and emptying.
BUT, I find packing away a real pain. I can't put my arm in the waste tank to pull out the fluff without knocking off the filter - plus who's bright idea was it to put the waste dump valve above the electric cables.
That coupled with having to make sure it is completely empty, because I have to load it on it's back due to the raised floor on my van is peeing me off at the moment.
Must admit I haven't used the heater yet, I've spent the last week cleaning with nothing but Pure Clean and a cold water rinse just as an experiment and have been getting very good results.