I first saw this mentioned in TereyDavi's gaming indoors article on LAF and thought what a wonderful idea.
Spotting this on Zatu for sale the other day was an instant purchase for me.
WOW!!

This stuff is really good. It is useful for so many genres - Pulp, Fantasy, Sci Fi and WW2 DAK vs Allies (OK so Pulp again then). I linked a video review (en francais) at the bottom and this goes through what is in the box.
I set it up straight away and plonked a few minis and random terrain bits inside.
Here are my quick pics
There are 12 rooms (one is upside down to make a raised area

Lors Elpus, Kipper and his "secretary" wait outside the tomb entrance

Look behind you!

The fight in the first hall


Other halls and corridors link with a clever door clip to form twisting passageways and rooms to explore



and an overhead shot

Here is the French bod reviewing it
Right then, Gush Mode Off, but I wanted to share because I think it's great.