Works as advertised Rated 4 out of 5 stars
No problems here and works just as is described. An older review mentions that it conflicts with Compact Headers but that is not the case any more. I can keep Compact Headers on and when I view emails in classic mode (which I sometimes still do for my own reasons) the CH addon does its job.
The only reason I'm dropping a star is a minor point: The toolbar buttons (reply, fwd, del, junk) are disabled in conversation view. I know all the options (except junk) are available in the conversation view as smaller buttons and via the "more" drop-down list, but I'm really used to just moving the mouse up to the toolbar for delete or junk.
Still. Great addon!