On the way out - We were upgraded to Fastpark and there were teething problems with computer systems which did not recognise our booking. However a very helpful member of staff sorted this out. On the way back - 1 - Signage from arrivals exit confusing if you cross the courtyard as it is not obvious that the subsequent direction signage in the covered walkway takes you at right angles to the sign in the courtyard. 2 - There are 4 machines from which to recover your car keys and I had to try 3 of them before I found the correct machine. It would be helpful if your ticket issued on parking indicated the machine to use on return. 3 - On exiting Fastpark you require to obtain a ticket to exit the general car park. Better instruction signage would be helpful at the Fastpark exit barrier. I'm sure these are all initial problems and the system will work well once it is bedded in.