In the right car, reasonably stable that is, this circuit is one of those you could run around for hour after hour, finding tenths and hundredths here and there, and loving every moment of it.
I say that you need a stable car because the circuit's great strength can be its undoing, if you're using a car that is easily upset. The 'White Water Rapids', as I like to call them, are a series of bends on an undulating, but generally falling, section of the track. Nailing the correct line down them is soooo much fun. Failing to nail the correct line is soooo frustrating, but that itself adds to the overall experience.
Chuck in dynamic weather and you have a track that will keep you and your racing buddies happy for hours, honest.
Cheers, Zo.