A lack of facilities. Notably no laundry or kitchen facilities, although the bathrooms were good and clean as well. Nowhere to hang wet gear (in Scotland where it is wet a lot, if you are camping you can bet you have wet gear! We had wet sleeping bags in the morning).
There seemed to be a concrete slab under the grass where the tent pitches are and it was almost impossible to get tent pegs in the ground, we had to put them on a serious angle.
Did not find staff contact via email friendly at all but short and very brief as if they did not care at all whether we stayed there or not.
Signage finding the campsite was hard to see and situated inside the driveway so you had to assume you were going in the right driveway before you could even see the sign, it took us a but of driving up and down to find the place.
The wifi arrangements were hideous. Expensive and pay on Paypal only - how can you do that when there's absolutely no service? Also assumes everyone has Paypal. They must be kidding. This is seriously poor form.