Hi Anthony,
They were powder coated 17" and cost around £270, think its a tenner more for 18's. They do a same day service, drop the car 1st thing and collect at the end of the day. Mine were a spare set so I left the wheels one Saturday then took the car the following Saturday morning to allow them to swap the tyres and wheels.
I must admit, Ive noticed today, quite a defect in one. I'll take it in next week for them to have a look and comment. How they handel this will prove their customer service. They also put valves on that are too long so Im going to ask them to replace with shorter ones. I'll leet you know how they handel problems, however I cant see there being any issues.
Cheers Mike