About four or five years ago I've set up GTD system in the Evernote with nested tags and smart searches
It was awesomely nice to use because I could have Actionable items and Archive in the same system with easy way to link between the items
Then four or three years ago I switched to the linux and since then I've been struggling
Web application, third party clients and wine setups never worked tolerably.
Other note taking apps I've tried weren't suited to be configured to become same awesome integrated GTD system
For about three years then I almost completely haven't used Ever