Looking for updated information on the location of the autobus stazzione in Florence for a bus to Siena. It appears that things in Florence have changed since I last did this excursion, and perhaps my research skills have gotten a bit rusty since then, as well. Looking for the exact location of where to catch the bus, as well as a website with a timetable. Anyone who's done this in the last 2-3 years, please help! Thanks.

Bus station is still right by the Novella train station.
Take the 131R bus (131 has more stops)
Faster and less walking than taking the train.

Thank you for your response! So the bus station is still right around the corner, where the SITA buses used to leave from? Do you know if there's a schedule online? I found the www.at-bus.it website, but really couldn't make heads or tails of it as far as where to catch the bus, where it drops off in Siena, etc. When did you last take the 131R bus?

rome2rio.com is my go to transpo site.

I checked that site, but it didn't give me any of the details I'm seeking to actually get on the bus somewhere.