Vac motors no problem, they are Lambs and as long as you don't honk a load of water through and run them for 5 mins while you pack away they will last. The 600 psi pump is reliable too, 500 hrs service, mines done around a 100 no problems, again flush with cold water if you like chems in the solution tank.
Construction and build quality is superb. Switches etc are at the top of the machine so no bending and there's a pressure gauge. To open the machine, two bolts flip the top against the wall. vacs unit then flips out leaving plenty of room to work. It's a nicely thought out machine.
Performance. Compare to my twin Alltec worlds apart. Lots more power worked at 100ft and it's fine. Drying times are subjective all I can say is I've never been called back! Did a minging pub used a lot less water than I did with the twin vac, cleaned overnight, popped in for payment later in the morning and it was perfectly dry, about 5 hours but could of been a lot less.
Not tried the heater..
Noise is not as bad as you would think, there is a silencer that fits onto the exhaust port which quietens things down enough to have a conversation. I simply leave it outside anyway.
Can't compare to other tripples not used them, Alltec's quality build is excellent I've used their twin vacs for years but the GRP bodies are heavy but it is a lovely machine,. Scorpion did not have a pressure gauge and I felt it looked rather dated, just an opinion. The Airflex is lighter than the Alltec and has a much more modern design than the Scorpion in my opinion.
I would have no hesitation in recommending the Airflex, had it a few months with no problems at all and Matt is great to deal with. Yes it's a new(ish) machine but the internals are trustworthy and it's very well built. I hear one of the franchises have just switch to Airflex and i'm sure it was very well tested.
Regards
Simon