Has someone tried "Let's Encrypt"?

While I like the idea behind "make it simple and cheap so everyone can use it", I dislike the fact the you need to install their "certificate agent" to obtain the certificate. Automagically configuring nginx/apache is probably a plus for users who have no idea how to do this.... but then those should think twice before hosting their own webserver ;-)

None the less... the protocol they use looks interesting, the certificates are free. Might be an option for fun projects, etc. (and viable alternative to other free providers like StartSSL)

Has anyone tried it?