Rookie freestyle nights, Hemel Snow Centre - anyone been?

Hi all,
New season fast approaching and the knee ligaments are all repaired so the sensible thing is to take it easy and spend a week cruising blues and reds. But sod that, this is the year I need to nail a trick or two.

Has anyone got any experience or reviews of the UK dome based freestyle courses? Most seem geared towards snowboarding unfortunately. I'd like to do the Maverix day course between now and January but wondered if the rookie clinics run at Hemel every week are worth a go for learning the basics.

Any info appreciated. Cheers.