Just got my winter 17 inch tire / wheel combo installed. I am pretty pleased. The whole set up cost me just a hair under $1100. Got new alloys on sale from crappy tire and scoring some almost new (10/32nd's tread) WS90 Blizzaks. I think I did really well.
For $125 the alloys are quite nice. Maybe a little too silvery but that is it. Not near as nice as my 19 inch OEM summers but for winter they are a good look.
I had had W60's on my BMW 328 and found them horribly squishy. Many said the Blizzak WS90 were a vast improvement. I was still concerned.
I am happy to report that even with the 17 inch set up I am finding the WS90's very good. They track well and do not feel squishy at all. The Mazda is quiet and do I not find the WS90's exhibit much road noise.
I did not install TPMS sensors. I was surprised it took 2 days and maybe 100 kms for the warning light to come on. I thought it would be almost instantaneous. I was beginning to wonder if the system worked. If the light bugs me I will resolve that with a piece of tape.
All is good.