Yeah, I found study skills to largely be a waste of time, the only piece I enjoyed doing was the research assignment because we could research any topic and write about it. Even that wasn't really useful as a study skills tool, because we'd been researching set assignments all year.
One of the things that was frustrating though is we got some of it right at the end of the year, overall I'd say the course was well organised, except for this one assignment about tracking your progress of applying to uni, which should have been given at the start of the year rather in May, when I'd thrown a lot of the materials out (i.e pamphlets from various unis I'd applied to etc).
I think the fact that we get through the access course in itself and all applied to uni anyway covered all the criteria laid down in the studies skills assignments. Thankfully though, because we were only in 3 hours a week no time was wasted covering studies skills, it was 100% focused on covering the core material.
But having said that, if I was a day student in 20+ hours a week or however long that was, I don't think I'd be too bothered doing some studies skills, as long as it didn't detract from doing the main stuff.