I may not have given LB a great chance to prove itself to me, but what I saw of it I found a bit smug, and it didn't seem a genuine thing all of its own, it looked like a copy, however loose that copy was. It also helps if you're a Dee fan. I'm not really, I don't hate him, but he's always seemed like a bit of a character of his own making to me, a bit made up.
I could be wrong about him but I'm not going to give LB another go, it takes more than clever writing and plot forming to make me love a sitcom. Many US sitcoms have failed to woo me by being too brain over brawn or just too script heavy. I like old fashioned British heartiness. So many of our new sitcoms are too sly, and just not funny enough. They are copying the modern American model that win all the awards but look fairly empty next to our own greats, imo.