Things that I'm qualified to give this praise for

It is so very period
The characters are great
Funny as heck

Portrayals I don't feel qualified to judge in context of time
racism (sometimes the characters are against it sometimes they are accepting of it)
sexism (see above)
diet culture (see above)
homephobia
suicide (actually I do feel qualfied to say that there's a too vivid desceiption in there be safe friends)