I thought the points posting was one thing that has greatly improved. I don't think i've had to wait longer than a week for any flight points, my mosaic/lucky seven posted the same time as qualifying flights (5 days after flying date).
The one thing that bothers me more than anything is log in issues, i randomly get logged out or i will log in and try to view flights, only to have to go back to the main page and log out/log in again. very frustrating.