I've been meaning to post this for a bit now. I picked up the Moon Base Klaisus set with a gift certificate my brother gave me for Christmas, and it's pretty groovy, even tho it has some flaws for my specific needs.
Specifically, I don't have a big enough table to support a (roughly*) 4x6 cardboard foldout, and not enough room around my table to allow for actual play if I put a 4x6 chunk of plywood or something on top of it. Here it's folded down to an approximate 4x4 for a 1250 point Game. It looks good from a distance, but if you zoom in, you'll notice that there are four areas, most noticeably the one in the lower left, that don't fit in. That's because the remaining panels that I'm not using had to get folded up on top of the section I did want, which kind of messes with the layout, and keeps it from being flat. I'm trying to decide if I just want to deal like this in hope that I'll eventually have a place big enough for a 4x6, or just cut off the extra panels and make it a dedicated 4x4.
Speaking of the layout, I really like that the street grid is set up at an angle to the sides. It makes for more interesting games when the Terrain is at angles to the Deployment Zones, and it's easier to avoid stuff just getting blown away as the streets provide open fields of fire in the directions that everyone needs to go.
I had thought we were going to have to rule that the Stanchions on the Sector Mechanicus stuff blocked LoS, but it turns out that when it's at odd angles and all mixed together like this, it actually blocks LoS pretty well. My Sector Mechanicus stuff, as you can see, is in a variety of different stages of completion. Most notably, I don't have any of the railings done, so we just played that all the walkways provided cover to anyone standing on them. The walls that came with the Moon Base mix really well with the rest of it, and even line up perfectly with the pipelines. My opponent was amazed that a bunch of it was just clipped together. It was solid enough while his Drukhari were swarming across it that he'd assumed it was all glued.
The one real negative to the set is that you have to be super careful when re-folding it. It's really easy to get a finger inside of the fold, which causes the cardboard to start tearing and delaminating.
Fluff-wise, my idea with this layout was that there had originally been some sort of nondescript installation here. Hab blocks, Admin buildings, stuff like that. Then someone attacked and blew it all up. That's the ruined walls that came with the Moon Base set. Then, quite some time later, the Adeptus Mechanicus found promethium deposits or something like that, and set up a facility to extract and process it. Recently, all contact with that facility was lost, resulting in the Jade Serpents Space Marine Chapter being sent to investigate, and clashing inconclusively with a Drukhari raiding force.
*The dimensions of the board are kind of odd. As near as I can tell, they're based on being folded down into A4-size stacks, minus a bit so you can get a finger in between the boards and the edge of the box and actually pull them out rather than having to dump them out.