The pickup bus to get back from the terminal took over twenty minutes to arrive. Given it's a 5 minute walk to get to the car park... that's too long. It's also annoying that there's no pedestrian entry/exit from the medium stay car park, so you're forced to wait for the bus unless you want to hop the fence. Also the barrier system never recognises my prepaid ticket on exit. I had to wait ages for someone to answer the 'help' button and manually take my booking number and let me out. Frustrating for me but also for the queue of people behind. You should provide a 'it's not my fault' for people to hold up at the barrier to sate the honking horns behind!