Shaun, Ive had an evo 1.5 inch version for a few months now, it's light a nimble and feels real sweet to use.
But, I would get over excited, a few cons, it's drips-no major prob but annoying, there's no fllter, your definitely need to fit one by the QD or your get jet blockages.
But biggest issue is in my opinion it's no use on loop pile similar to other glided wands it just won't lock down as hard on a loop pile, therefore I keep my unglided PMF wand on board for those, it may be more in my head but I just feel there's not enough water recovery, so only use evo on end cuts.
So all that said it's a good wand but not sure it's good enough for the hefty price tag
(I paid 530 with vat)
PS the head is actually closer to 13 inch than 12. Which is good.
Prochem quad looks good but it's only 11 inch head that put me off, must be slow for big areas.