Has anyone bought a house with these type of walls?

[Kyle J.]

Some of the houses I've been looking at in a particular neighborhood have cinder block-type walls.

Here's an example: http://www.idxre.com/homes/6/2/5117-ARGO-WAY-SACRAMENTO-CA-95820/12065119

I've never owned a house with these type of walls, and I have a few concerns about them. For instance, how well do the walls insulate against heat & cold? Also, I assume if I ever have to run any type of wiring, I'm going to have to run it along the outside of the wall (exposed) because I'm obviously not going to be able to run it through the walls.

However, on the positive side, they seem like they could be pretty durable and tenant-proof.

Anyone have any experience with homes like this? Thoughts? Other concerns I should be aware of?