Nah, the only one that really had any kind of depth was Walter. Even Jessie himself didn't overly change much after Season 1, was his character all that different from the end of season 1 to the end of the show? Not overly. They were all dislikeable shites too. Even Jessie became a bit of a whining twit. Walters family were shite, annoying characters.
I think the problem is that people enjoyed the premise of the show and unlike other shows it did at least end well. The fly episode was by far the best episode in the show, its one memorable episode that I can remember. It also probably aired at the right time for the demographic of this forum, most of us were young 20's to 30's. Anyway, for me it's not even a top 10 show, too many characters in the show that I found incredibly tedious and dislikeable. Ultimately it was carried by Walter and Jessie and both characters went through stages of being deeply annoying shites. It was hard to route for anyone tbh.