As listed in my blog, for those interested in Mendoza, the boutique hotels are really cheap there. I highly recommend Bohemia Hotel and Boutique. As far as restaurants, 390 Pastas and Clementine Café are the best places in that city. From where I live in Valparaíso, you can take a bus there in 8 hours for 20 dollars -very cheap way to travel compared to the 200 dollar airfare. The biggest attractions there are the wineries and the best one I have been to out of the 6 or 7 was one called VistAndes. This city is AMAZING and anyone in South America needs to make a trip there.
( More photos here...Collapse ).