sottozero

hi i am having some alloys refurbed at the moment and have been looking for some cheap(ish) winter tyres for my r129 they have got 2x brand new and 2x used (500 miles) Pirelli Sottozero 225 r17 45 and want £90 for each tyre. does that sound like a good deal? i was going to go for...

As people still seem to be talking about winter tyres in preparation for next winter has anyone had any experience of Pirelli's Sottozero winter tyres? They seem to be one of very few branded tyres I can find in the right size for my rears, that being 255/35 R18.