Being able to sit: Great!
Looking at your chest with no options to change your view angle is not. That severely limits the cool factor of sitting with people!
Additionally, seating near tables is a massive pain, and needs to work such that you actually look like you are at the table (you can sit facing away, or a good two meters away!)
Suggestions for seating improvements other than this that are very minor (the following are nice to have, not needed changes):
-Seating select for benches. This could just be a choice between which side of a bench you wish to sit on, and a slider along the length. It would make multiple people on a bench an option, and be kinda cool.
-Eat and Drink while sitting.
-Emotes that work while sitting, such as leaning forward or back.
Again, these last three are just some RP friendly ideas, the first two are issues which really need addressed!