Country Resort Il Frassine is a great choice for a stay in Rignano sull'Arno. After splashing around at the outdoor pool, you can unwind with a drink at the bar/lounge. There's also a garden, and rooms offer LCD TVs and room service.
Pros: Beautiful place to stay, very quite and peaceful area immersed in nature. Very helpful staff. Highly recommend the place. It is also very near to Florence and other interesting places.