From what I remember reading, Summit and Sanyo kegerators are the same now. A while ago I was looking into the Sanyo kegerators because they had pretty decent reviews as compared to other models(which the biggest complaints were they couldnt hold low temperatures). I have a Sanyo refrigerator that I bought from Craiglist that I was supposed to convert into a kegerator, but it hasnt happened yet, and it doesnt have any temperature problems...Short story long, I will probably be buying a kegerator and have been really considering Summit. It seems like most people reviewing them online are happy with them. Good luck with your purchase and I am interested in hearing how you like yours.
PS The 7up syrup may actually be the cleanser they used to clean them. I've ordered kegs from another place that were cleaned and pressure tested and they smelled like 7up...or maybe they never cleaned them either. Anyway, I cleaned them with soap and water and replaced the orings too and they were fine. Unless the o rings are new, I would replace them anyway.