Although Hank is usually a likeable character, it's always funny when he does or thinks something out-of-the-ordinary. The fact that Hank begins having dreams about another woman was hilarious and provided an interesting conflict.
The fact that Hank would agree to go to a nude beach and (to some extent) enjoy it really surprises me. In the end, it turns out that he was bored of propane. A little anti-climatic, but it is believeable.
In the end, the episode provided us with a good and interesting conflict, humor from John Redcorn, Dale, and even Bill, and one of the best written episodes of the season (maybe out of the entire series).