Duel · Accommodation · Bagni di Petriolo · 2 addresses
Casa Guaitoli or Mercure Petriolo Siena Terme Spa Hotel?
Two accommodations at Bagni di Petriolo compared criterion by criterion with the editorial rating, the recorded price and the amenities. Verdict written by the code, based on the editorial team's justifications.
ACasa Guaitoli
Bagni di Petriolo · €€ · 100–200 €/night
reliability medium
from 190 € / night
9,3/10 travellers · 174 reviews
BMercure Petriolo Siena Terme Spa Hotel
Bagni di Petriolo · €€ · 100–200 €/night
reliability medium
from 149 € / night
8,1/10 travellers · 1128 reviews
The verdict
Casa Guaitoli takes the lead
Casa Guaitoli scores 7,5/10, ahead of Mercure Petriolo Siena Terme Spa Hotel (7,0). Country hotel with eleven rooms in Bagni di Petriolo, with pool, restaurant, breakfast included and the Thermes right next door. Rooms and air conditioning not specified; the listed price of €190 per night remains to be confirmed.
Choose Casa Guaitoli if…
- you want the safest value in the duel: best overall score (7,5), level with or ahead on confort & équipements, emplacement et rapport qualité/prix
- you prioritise intégration dans l'environnement (6,3 vs 5,9) : Country-style hotel in a rural setting in Civitella Paganico; building type and any renovation not specified.
- you care about petit-déjeuner, parking et animaux acceptés: amenities that only this listing mentions
- you trust travellers: 9,3/10 from 174 reviews, the best rating in the head-to-head
Choose Mercure Petriolo Siena Terme Spa Hotel if…
- you care about spa et vue sur les collines: amenities that only this listing mentions
- your budget matters: from €149 / night, the lowest price in the head-to-head
Reliability medium : ratings based on the file of each listing and 174 to 1128 traveller reviews, not on a stay by our team · Ratings of the 20 October 2026 · Our rating method
Tosco's word
The Mercure Petriolo wins on the ground: thermal pools, a full spa, two restaurants and a 4-star hotel at €149 a night, with reviews at 8.1 from 1,128 feedbacks. If you want to pamper yourself by enjoying the thermal baths without leaving, this is the one. Casa Guaitoli, at €190, has the better Toscane Cachée score (7.5 vs. 7.0) and a higher traveler rating (9.3 out of 174), better suited if you want a rural and calm atmosphere.
Tosco only cites facts from this head-to-head: ratings, criteria, prices, amenities. Text calculated once, checked by the code.
Criterion by criterion
The 5 criteria of the score
Why these ratings?
Casa GuaitoliOutdoor pool, free parking, Wi-Fi, breakfast included and an on-site restaurant are mentioned; rooms and air conditioning not specified.
Mercure Petriolo Siena Terme…Indoor and outdoor thermal pools, full spa, two restaurants: the essentials are there, but rooms and breakfast are not specified.
Why these ratings?
Casa GuaitoliLocated right next to the Thermes of Petriolo, in a calm rural setting; distances to villages and beaches in the Maremma not specified.
Mercure Petriolo Siena Terme…Petriolo thermal baths on site, in the Farma valley, Saturnia 15 min away and Pitigliano 22 km away: isolated, quiet setting, close to named sites.
Why these ratings?
Casa GuaitoliAt €190 per night, breakfast, pool, parking and Wi-Fi included: amenities consistent with the listed price, with no marked extra value.
Mercure Petriolo Siena Terme…At €149 per night, a 4-star hotel with a spa, thermal pools and two restaurants: amenities consistent with the price listed.
Why these ratings?
Casa GuaitoliCountry-style hotel in a rural setting in Civitella Paganico; building type and any renovation not specified.
Mercure Petriolo Siena Terme…84-room hotel built around the thermal baths, in the middle of the countryside: architecture and materials not specified, character of the building not documented.
Why these ratings?
Casa GuaitoliTraveler rating 9.3/10 from 174 reviews: within the top 7% of the catalog.
Mercure Petriolo Siena Terme…Traveler ratings 8.1/10 from 1128 reviews: ahead of 59% of the catalog.
Features
Price, village, amenities
What is written on the listing. “Not specified” is not “no”.
| Criterion | Casa Guaitoli | Mercure Petriolo Siena Terme… |
|---|---|---|
| Recorded price | from 190 € / night | from 149 € / night |
| Village | Bagni di Petriolo | Bagni di Petriolo |
| Traveller rating | 9,3/10 · 174 reviews | 8,1/10 · 1128 reviews |
| Reliability of our score | medium | medium |
| Type | Hotel | Hotel |
| Budget | €€ · €100–200/night | €€ · €100–200/night |
| Swimming pool | Yes | Yes |
| Breakfast | Yes | not specified |
| Parking | Yes | not specified |
| Pets allowed | Yes | not specified |
| Restaurant | Yes | Yes |
| Wi-Fi | Yes | not specified |
| Spa | not specified | Yes |
| View over the hills | not specified | Yes |
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