I have, yes. Weirdly for a British enthusiast (who had never been to Blackpool prior), Elitch provided both my first SLC and first woodie.
There are better woodies out there, but Twister 2 is a fairly long ride if I recall correctly, I really enjoyed it. It's rougher than other woodies I've ridden, but not overly so.
I also think the rapids there is one of the better examples of an older generation rapids ride.