We have used Chips away a couple of times - scrape on wheel disapeared as did a scrape on the spoiler from the garage door (thought that would challenge them because it is semi-matt).
It is a franchise operation so can vary from area to area but from our experience I would recommend them.
1.4 Petrol Special Edition, Ebony Black, grey leather, heated seats, climate, opensky, five spoke alloys for SWMBO (Replaced a 2002 1.4 Petrol SE) Honda Accord Tourer 2.2 iCDTi for me.