We had a great summer holiday in Les Carroz. The apartment was a great find: small but clean and well-equipped and in a great, quiet location just outside Les Carroz. There's a well-stocked shop/petrol station nearby, and it's a short (10-15 min) walk or a 2 min drive into the village where there are a range of other shops, a tourist information office, swimming pool/sports complex and cable car. We found everything we needed in the apartment for self-catering and we enjoyed relaxing in the evenings with the board games (esp. Monopoly!), the selection of DVDs, UK TV and Wi-Fi.
The British owners were very helpful in quickly answering our questions before our trip. We really appreciated the great advice about things to do, on how to find the car rental desk on the French side of Geneva airport (see below), and also the information concerning the Swiss vignette (sticker needed to drive on the Swiss motorways). Our advice: if you hire a car, check if there is already a current year sticker on the windscreen. If you're lucky as we were, you can save money and stress).
We found lots to do in the area without driving miles. We enjoy walking, so we bought a pack of local walks and maps in the Les Carroz/Araches area. Some you can do straight from the apartment, or by taking the cable car (the Telecabine) from Les Carroz. If you enjoy alpine flower meadows and butterflies, you're in for a treat! We also took the cable car from nearby Flaine up to 2500 m, from where you can enjoy an incredible view of the Mont Blanc range. We also really enjoyed walking at Sixt-fer-à-Cheval, with its amazing waterfalls. The whole valley Samöens/Sixt valley (about 30 mins by car) was beautiful and worth exploring. The more adventurous can also go paragliding, white water rafting and mountain biking, all from Les Carroz.
For the benefit of others, here's Angie's advice on finding the the car hire on the French part of Geneva airport (ignore any signs for car rental!):
'Collect luggage and exit baggage collection. Turn left and head up escalators to departures. Once at top turn right and walk to far right top corner where you will go through French security doors and you are at car hire. Collect keys and car park on bottom floor. Once in car exit airport. When you get to main road turn right and drive through Swiss border, through tunnel and then follow signs for France. On return put French side address into sat nav. It will be on car hire docs.'