There are too many things to list from a user standpoint, here are just a few:
1) No resume posting section in the jobs section. The reply to blind ads system in America is completely broken, why build another one? Why not create some unique value.
2) The user interface to reply to an ad is not good. Manually entering a bunch of data on a screen with a captcha is just plain brutal.
Improve and refine the data categories and user interface and then please try again. Thank you.