Stayed at the Renaissance on our honeymoon last fall. Really liked the hotel and the location. One of the more interesting and inventive meals we had was at Ten's Tapas. Really really good.
If you have a car, head down to Falset and check out the Priorat and Montsant regions. Far more interesting wines than most anything in Penedes, where I understand you get the wine tour bus crowd, if you catch my drift.