We have just returned from a 2-week stay at Villa Mierlo with our two teens and were really sad to leave. It's a lovely house in a quiet hillside location with amazing views from every window (you can see the sea, the Pyranees and Spain) and a good sized pool, which we used to the full. The house is beautifully renovated, with plenty of character, all mod cons and very well equipped (lots of kitchen stuff, sun loungers, an outdoor table tennis table and a Wii with all the games). There was more than enough room for 4 of us (we all got our own ensuite bathroom) and this property would suit 2 families too. The villa is in a quiet location about half an hour inland from the nearest beach, so we had a couple of beach days, and an afternoon white water rafting in the mountains about a 90-min drive away. Most of the time though, we just enjoyed hanging out at the villa, swimming during the day and having bbqs and playing board games in the evenings. The historic village of Llauro is a 10 minute walk down the hill. The only downside is that the village shop and restaurant/bar are no longer open, so shopping, eating out etc is a drive to nearby towns 10-15 mins away.
Our lovely concierge Eric and Nicole were on hand to look after us (they even brought us oysters back from a day trip).
If you want a peaceful holiday away from the crowds and don't mind driving to get places, then this is ideal.