[vitamark]

Probably just the convenience.

Expression `select(User).where(User.id == user_id)` does look simpler and cleaner than `select(User).where(eq(User.id, user_id)))`.

Maybe there is an actual eq function of sorts that allows that, and it's not a life-or-death difference here, but as far as convenience goes, it works well. And typecheckers are good enough to be able to let you know what's the return type.