Yes, I was surprised too - seems that the price on this has fallen - I remember around 4 years ago on my old Audi A4 at an indy garage it was around £500
Whilst it is still £300 I'm happier with that price!
For those that have had theirs done - did you bother with the water pump or not?
always do the water pump at the same time as the belt

and your a4 would have cost more due to the time involved as its a lot more work than a golfs