Are there any cons to moving to Tuscany ?

Tuscany is big as a region.  Do you want to be within 30 minutes of the sea?  Do you want to be up inthe hills/mountains?  Do you like rain and snow?   Do you want to be near an art city?   Do you want avoid as many tourists as possible?   Make a list of the essentials and then you can narrow it down and start drawing circles on a map. 

Tuscany  isn't  the cheapest place to look for property additionally the local taxes, rubbish and comune charges. Have a look at adjacent provinces, Umbria costs are much less but share similar landscapes. Long term running costs have to be taken into consideration to make plans.

As well as looking at zonal areas for types of property and scenery also consider the weather, the western coast has suffered from very high winds and strong storms, naturally closer to the north snow falls, ideal for skiers. Lakes suffer from mosquitoes, but comunes will spray insecticide to get rid of the swarms in the summer, they also attract lightening storms and humidity.

Are you expecting to explore more of Italy and /or travel back to the UK frequently? Then ease of road, rail and airport access is another consideration. Major transport links: there is a good coastal road linking towns but the next main link is the Cassia way some distance inland over mountains, then centrally between Tuscany and Umbria is the A1 linking north to south with the main rail line running alongside. Roads and rail going west-east are fewer and narrower. Buses depend on where you live and where you want to go, naturally the best services are for the larger towns and often you will be taking the bus that does the school/college run as it is the most reliable.

Most towns have a weekly market, although since covid much reduced in size, a good sized town will have at least 1 supermarket, even if small, a butcher, fishmonger, chemist, bank, insurance agent, veg stores, cafes, bars, restaurants and doctors, but outlying villages perhaps no shops and maybe just 1 bar/cafe these will be quieter and less busy with tourists in the season.

Long term rentals are almost impossible to contract as the airb&b holiday rental makes the owners a lot more money and is not as strictly controlled.

Good luck

M