Looking for a new ad manager for WP

Hi there,

I’m looking at Ad Manager WD, and I have a few questions:

–How is it on server load? My current plugin’s tracking kills my
server with Ajax requests
–Can the plugin handle groups of ads (ie by groups of pages)?
–Does the plugin auto-expire ads?
–Does it allow for banner rotation in a single spot, either by a set
number of seconds or on page referesh?
–What is the tracking like?
–Does it support shortcodes for ad placement?
–Can I set up users to manage their own ads?

Thanks!