It is much more affordable than being in one of the large cities, there are also fewer English speakers than in either Rome, Milan, or Florence, creating more of an immersion experience, and “hello!” the countryside! Rolling hills of olive groves and vineyards, you’ve all seen the pictures! Siena is also centrally located which allows for side trips.
Tuscany is known for its wines! The Sangiovese varietal is Italy’s claim to fame and is used in Chianti Classico, Montalcino, Super-Tuscans, and Italy’s most expensive wine, Brunello. Mmmmm!
Siena is a medieval walled city and a UNESCO World Heritage Site. It is named after Senius, son of Remus, of the legendary twins Romulus and Remus. The population is only about 50,000 so will have a nice feel.
The temperature will be similar to what I have here right now, hot! In the 90’s.