Potholed, stony and dusty wasteland with no road markings and absolutely no indication of where the free spaces are. Drove up a row of parked cars to discover that there was no exit at the other end and I'd have to execute a turn in a very narrow space to escape. The enormous Range Rover behind me wasn't able to and had to reverse all the way! The row I eventually parked in was the same - lucky there were spaces, since several cars had entered the row and trying to escape all at the same time would have been a nightmare. When I came back (at night) to collect my car it took me about 10 minutes to work out how on earth to reach the exit, since it's not signposted and as previously mentioned there are no road markings. I would say avoid, but obviously if you want to park at Luton airport you haven't got many other choices...