I flew through Edinburgh last sunday and It wasnt too bad Jet2 had their own check in which was easy and fast, security was not the best but most certainly not the worst and was ok considering it was midday, once into departures plenty of places to eat and even though it was busy still a good place to sit down and see a few planes. I returned on the next sunday at 12am, border force was quick even though 2 or 3 planes had landed at the same time and all desks were open, baggage was on the belt within 20 minutes and we had just arrived to find the baggage already on the belt so overall a good experience imo.