After running tbhs and Langs for a few seasons, I've developed a curious emotional reaction to each type of beekeeping.
Once I setup one of my tbhs and they have straight comb, they can be left essentially unmanaged and do just fine. I've found that I only need to work them just a few times a year. My langs require about a visit/month during the active season. So, when my mood or schedule dictate very little time for the bees, tbhs are a favorite and Langs are a pain.
But when I want to feel like a real beekeeper and mess with the bees alot, the Langs provide no end of opportunities for messing around. It's then that the tbhs seem a little restrictive.
So far, I haven't been able to cut loose of either type. ;>))