Doing some JUNOS training today and tomorrow. We haven’t dug into it yet, but I can tell you one definite strength right now. JUNOS is one code train versus Cisco’s 8000 versions. Cisco used to make my head spin trying to figure out what code rev I needed. JUNOS doesn’t have all that.
The first router Juniper came out with was the M40 many years ago. You can take their latest code level and put it on that old M40, and it runs with no problems. Try that with Cisco.