I'm not exactly sure what it is I don't like about this episode. It could be the large focus on the guest stars, the way that Henry and Coreen both branched off with new characters (not to mention Mike and Dave but Dave does have a right to be there - it just added to the problem).
This episode just goes to show how important the dynamic between Vicki and Henry (and, to some extent, Vicki and Mike) is to the show. When there's a lack, there's a lack. It certainly says something that the most interesting parts of this episode was the exchange between Vicki, Coreen and Henry at the gallery.
Worst episode of the series, in my opinion. Severely unimpressed.