Besides the skull disease, its got the tube disease. While tubes are the most materials cost efficient way to enclose a volume (lowest cost for GW), they are the worst possible shape for determining cover. No way to hide "behind" or get cover from a large tube and still shoot. A couple of them on the table are fine, but I tend to specifically NOT build them because of the problems determining cover with them.
Not so sure how useful the 6" * high platforms and walkways will be for Necro. Unless you are within an inch of the ladder base, its going to take two turns to get up a ladder. Going to want "ladder" bases** to hold figs that are partway up ladders at the end of their turn. Something that hooks into the ladder and has a base large enough for the fig to stand on. Half of the stanchions also do appear to potentially support intermediate height walkways, except for the two with the fan and speaker that would be blocking the walkway.
*Would be nice if someone who has the box could measure the height of these...
**Possible opportunity for Tak's lasercut projects.
Platforms are 5" high