Hi guys,
I had the Ryanair assessment as well around 1 week ago and i experienced quite the same things of the guy who posted before me.
Luckly, i found a good parter and so we made a great team in the cockpit.
Personally, I can recommend the DastyflySim flight simulator near Bergamo LIME/BGY (Italy):
Simulatore di volo| Dasty Fly sim
They have really experienced and professional instructors with a great Boeing 737-800 sim (180 degrees projection). The price is also quite cheap as the price is around 65 euros per hour.
Still waiting for the answer! Fingers crossed!!