Hi. just to reply to a few points in this thread.
I now own a BeeHaus. I am a course tutor for them in the UK to encourage new beekeepers to the profession.
The BeeHaus has a fully open mesh floor, so won't suffer condensation issues. It has a very good metal entrance block that reverses for wasp control or closes completely.
It holds either one or two colonies (the second coming from swarm control in the Spring). It is not a top bar haive - it uses BS 14x12 frames which are the largest in the UK below Dadant and Langstroth which aren't popular here.
It has half sized honey supers to help with lifting and is aim primarily at the small hobby beekeeper.
It is stong enough to take my weight (100kg) and comes with 4 supers, 4 cover boards, 2 clearer boards, queen excluders, frames and foundation.
I'll let you know more when we get bees into it.