I really like the GTD Outlook Add-in.
I find it necessary to work in Outlook and the Add-in has enabled me to use Outlook effectively and efficiently for "runway" type items such as next actions, email traffic, waiting-fors and appointments.
The Add-in is weaker, however, with projects. Although some elegant programming has been done which does enable projects to be recorded and updated, once a project is created it is not easily accessible and there is no printable list showing all related sub-projects, actions etc.
I don't want to stop using the add-in but I feel that projects need more prominence and visibility in my system.
Has anyone else had the same experience and have you come up with any work-arounds?