It looks cool but walking up those joints...isn't cool and I can only imagine moving furniture on those things. 

We used clique studios a few years back and they were great. delivery was furniture style not on the pallet. there was one incorrect size but it was a packing error not the order and quickly corrected.

One question I have is how to incorporate depreciation of fixtures (kitchen, bath, floor) and furniture (including curtains, etc).

Furniture, yah.

Anyways, there was coffee stains (and more) all over the walls and furniture.

Black looks incredible as trim paint and then placing a single black piece of furniture in that room.

Hoarders often bring bed bugs in with dumpster finds or free mattresses/furniture they pick up.  

So I connected it to the 2nd floor unit with a beautiful staircase, put in hardwood floors, and stored some really furniture and a big tv up in the various rooms.  

I am a single guy I got like only two rooms of furniture so I will probably rent the other rooms out.

Tenants who move-out in a hurry usually cause more damage to walls and woodwork as they and their friends are quickly moving furniture, boxes, and bags.