Nope but one of my friends is involved in a production there once a year and loves it. Me and the missus are going down for a tour around Devon/Cornwall in a couple of weeks and I think I might surprise her with a trip to see MacBeth at the Minack... Might wait until I've seen the weather forecast though.
Haven't seen a show there, but it's one of my favourite places in the world when it's a bit empty and the weather's a bit wild.
There's one seat in particular carved out of stone that is ridiculously comfortable. I could sit there for hours rugged up in a fleece, close my eyes and listen to the wind, rain and sea.
fudge it - next time I'm in the UK I'm going back.