I've gone the last two winters in a row though I will not go this year. It's best in winter IMO. But given the drive and the ferry and all that, yeah, you'd definitely want a good clear day. It's not the best view in the world, but in terms of the mix of ocean islands and Baker and other distant peaks it is a unique vantage point. The old stone building with the historical stuff is kinda cool too.
"Got tight last night on absinthe and did knife tricks. Great success shooting the knife into the piano. The woodworms are so bad and eat hell out of all furniture that you can always claim the woodworms did it."