I chose this unit for the slim look- and it looks like a real built in fireplace mantel. The unit came in two boxes- one with fireplace metal housing and the other with wood mantel parts. All tools are included and its pretty easy to build. Dont tighten all screws final tight until the end so you can tweek the corners and line up screw holes if needed. I got the white color and it looks really nice. The fan makes a little noise when heating but not bad. I put my TV on top and bolted whole thing to wall so it does not have a topple risf. Looks good- just plug it in and its done! 

Pros: easy assemble, slim lines