Really effective, I use it on all my builds.
I would love to be able to use both Widget Logic & Widget Logic by Path together, that would be something extra special!
for websites using the Buddypress plugin, also see
for Buddypress specific conditional tags to use with this plugin.
Keep up the good work and thanks for making my life that bit easier =)
note: It might be worth adding a link to the Buddypress tags in the FAQ / Notes.