Liked using the site for my 941 and W-2 (both late filing). Will be back in January to file 1099s and other payroll tax forms. Found easy to navigate and very reasonably priced. I decided to give my first review on site so small businesses like me can benefit. A lot of 1s are scary but those reviews seems a little sketchy (hope it's not a competitor's job :-)
I will also explore the integrated TiN Match and W-9 features. Cheer!