Edinburgh Trail Escape

Anyone ever done the Trail Escape in Edinburgh? Marathon and 25k distances available. I've never done further than a half marathon, and quite like the idea of an accessible trail marathon because there's less pressure on time, whereas a road marathon I would always comparing my time to other races, or trying to go sub-4 or whatever imaginary benchmark I would make for myself.

It looks like the route will be walking paths too, so reasonably easy compared to an off-piste trail full of rocks etc.