This is a wonderful country inn located in The Maremma, one of the most gorgeous areas on Earth. The owner Fabrizio and his staff treat each guest with dignity and respect. They knocked themselves out in making our restaurant reservations, winery appointments, and planning the daily itineraries.
They also provided a magnificent tasting of their own wines, and this was done in classy style at their enoteca.
This Villa is worth a detour in order to spend relaxing time in a beautiful and historic area with minimal tourist intrusion.
Just a marvelous experience and relaxing stay!

This was our second stay at acquaviva and we enjoyed it again enormously: vast bucolic ground, excellent pool, very friendly and helpful staff, lovely breakfast.
if you come on a weekend there's double fun gazing at blitzy italian personages who populate the place.
passaparola is an extraordinary restaurant-with-enoteca in the village in montemerano. we haven't tried da caino (with 2 michelin rosettes) a few streets further because i was not dressed for the occasion, but it's on my todo list for the next stay.

I liked my stay in Villa Acquaviva so much, I returned two weeks later to spend another weekend. The vinery grounds are vast and beautiful; it's just so relaxing to stay in what feels like a guesthouse at a country estate instead of a commercial hotel...

I slept like a baby with my window open and fresh air pouring in. What better way to wake up than listening to the birds singing, take a nature walk (the grounds are HUGE!), enjoy fresh breakfast, and then off you go to explore the nearby countryside.

Location is perfect if you want to be close to Saturnia. It was a 10 minute drive.

How does Villa Acquaviva compare to 4 and 5 star spa hotel properties in Tuscany? It's 3 stars in size of the room (tiny), but the grounds and ambience more than make up for it (5 stars). Also, the price is much cheaper, and location is great. Villa Acquaviva is a very good value.

I liked:

Beauty, nature, and "relaxation" factor.
Morning and evening walks.
Breakfast (awesome cottage cheese, yummy home made jams and cakes, fruits, good coffee).
Location.
Swimming pool looked inviting, although I had no time to try it because I went to Saturnia thermal pools instead.
Dinner - I ate at Acquaviva once, and the lamb was very good.

What I think could be improved:

1) PILLOWS! The hardest pillows I've ever encountered. A softer pillow was needed.

2) Breakfast: I loved it... However, for longer stays more variety (some eggs, for example) would be nice.

3) Dinner: Meat was great, but add more vegetable choices.

OVERALL: Recommended, would definitely stay again.

We stayed 2 nights at the property to spend New Years in Tuscany with another couple. We were shocked by some of the other reviews stating that AC didn't work and intrusive owners. Each unit had their own heating and AC controls and even though we of course don't know the whole situation, we found the staff and owners to be fantastic. The restaurant was closed for the winter, so we didn't have an opportunity to dine at the Relais. There was a mini-fridge in the room which was nice.
We travel extensively in Italy and stay at many properties and this was one of the best for an agriturismo/hotel. The breakfast in the morning had fresh cakes and jams and other cold foods. We found the place very, very clean and secure as you needed to enter a gate with key card in order to drive into the estate.
They have excellent wine and olive oil, which we purchased to take home to the US. We ventured out to many of the small towns surrounding the area and we can definitely recommend 2 restaurants in particular-la solina and i due cippi da michele, the first on the way to Saturnia and the latter in the main square of Saturnia. The property is about 3 miles to the Saturnia Terme and 6 miles to Saturnia. We would stay at this property again in a heartbeat. Our pictures show the two different rooms we had, a deluxe and superior. I would also say the rooms that we had are better than what the pictures show on their web site.