It all depends on the vinyl they are using. 3 m cast vinyl is probably the best. A cheap job would probably come in a £150 and somebody that knows what he's doing I'd pay upwards of £250. They all look great for the first couple of months but Ive seen some coming away from the paintwork after a year. Removing is very simple. If the right vinyl is used ,your in doors and using a hairdryer the vinyl will peel off the car no bother without leaving any residue. You get what you pay for!