I used nodejitsu (paid account) for 24 hours. They screwed up their DNS and was sending my client's domain to a random person's node app (and vice versa).
That's when I stopped trusting other people to handle my critical infrastructure.
Maybe I'm a minority, but I can't really trust anything from a company with a login screen that says "logging you in securely" for 5000ms before loading me (sometimes) to my dashboard.