It used to be awesome. Now it's just closed source daily updates, everything is slow, and messages don't come in on time. Since the company has started using closed source software to "combat spam" as they put it, the program has gotten slower to load and slower to use. By a lot. Links rarely load, messages fail daily, and everything takes 2 times longer. As if they're logging everything now. Sadly, you have no other options for secure messaging anymore. Welcome to the post privacy age.