Pre-booking process was fine, however the form stated that our entry into car park would be recorded, and the number plate and booking ref would be printed on the entry ticket - it wasn't, which made us worry that we were in the wrong car park! Then, because our entry hadn't been recorded, we had to buzz for absolutely ages at the exit barriers, before speaking to a man, giving the reference number, and being told the barriers would now raise. They didn't. Lots more buzzing, repeat of same process before barriers finally rose. Also cars tightly wedged, and lots of potholes. Given price, you would think they could improve this!