I've never gone to this one in particular... but I did a course with a guy in Ambridge who owns a "survival" shop.

The "class" was mostly a waste. He did everything himself - not explaining steps. He did use his platform for a bunch of rants about WHY we'll be needing these skills in the near future (spoiler: it was liberals).

If this is more strictly, "here's how to light a fire, find shelter, etc." I'd probably go.