WBC's are OK. Ish. I have 4 in the front garden - the rest of my hives are Nationals or derivatives which are elsewhere. However WBC's have twice as much wood and are therefore twice as expensive to buy. They also take more time to deal with. And you always seem to run out of a lift during the summer, or some don't fit others which is a real faff. You can't do manipulations like a top entrance too (Snelgrove), so they are limited in some of the more advanced aspects of beekeeping. Clipped queens, if they swarm, can finish up in the space between boxes and the lifts, which can be an interesting thing to deal with.
And if yours are a bit manky, you can't get mouse-guards on them with the obvious consequence as you may have seen in another post of mine!
May your bees read the same books as you do.