I spent a night at the Vincci Lys on a family trip (four adults) and we all absolutely loved it. The staff were incredibly friendly and helpful when we checked in. The location is right in the heart of town, a beautiful area surrounded by restaurants and fantastic shopping. I would recommend booking with breakfast, since the breakfast buffet is excellent and probably the best that we had in all of our travels in Spain. One small thing, not really a complaint - we were traveling with a car. The hotel does have parking, but it costs 20 Euro/night, even for hotel guests. We didn't realize this when we made the booking.
But overall an excellent hotel, friendly staff, and a great experience.