This was the first unit that I bought. Sorry to say that I returned it the next day due to temperature problems. The guy told me that it went from a certain range (I forget now) in temperature which ended up being false. Check this site out, they have some good prices:
http://www.air-n-water.com/wine-cellar.htm
I bought the 28 bottle New Air and it works great. They usually have monthly sales if you sign up for their newsletter.