Last July my sons and I spent 3 days in the Stellenboch/Paarl area. We stayed in Stellenboch and drove from wine estate to wine estate in the area. There are a LOT of them. We also went to Van Ryn brandy distillery and had a tour and brandy tasting session. I was so impressed with the brandy that I bought a 6 pack case of 750 ml bottles of 15 y.o. brandy (for ~ $700 USD). The 12 y.o. was so-so. The 20 y.o. brandy was excellent as well.

There are some excellent wines that seldom get out of the region because they are made in such small quantities.

That said, there are a LOT of nice hotels and B&Bs to stay in. There are plenty of wine estates to try out.

DON'T limit yourself to just one. The tourist bureaux in S and in P will gladly assist you - don't just take my word for it.