Mike
It is in my house in Columbus and we have been in it about a year now -- on a part time basis. The main thing you have to accept is that the floor is not a "finished" floor like it would be with tile or any other material. It is meant to be rustic and if it has blemishes that adds to the rustic appearance. For instance, we have a spot where a leaf settled on the concrete and left an outline of itself ---- adds an interesting look. My slab has not cracked, but a neighbors has and again it just a different look. You can do a lot of research on the web about the techniques. You can groove it or leave it plain. I know a couple close to me that stained theirs after the walls were completed and also a lady in the area that did it herself after the house was completed. You can finish as glossy as you want or leave as a dull finish. I would think you could do it in your house, but of course the condition of the finish on the slab itself make be such that you need to do something to smooth it. Most slabs are not finished for a "final appearance". The main thing to keep in mind is what I said before, it is a rustic appearing floor. Let me know if you would like to come by to see it sometime when you are going to your place.
Billy