Transfers of Flix bus

[Purity]

We want to travel to Florence from Nice . The bus service is Flix. But however the bus has some transfer. I need to know that the transfer requires us to go to another area outside the bus station or it is in the same location
Like Genoa.
From.Nice to Genoa , halt for 1hr 55 mins and then another bus from Genoa to Florence Villa costanza.
How did one go to the city center on reaching Villa costanza?

 

[Purity]

Which tours are worth the money if one wants to travel to Pisa winery and Siena while in