Hi all,
I figured I'd add a some insight into my experience and what I used to pass this certification as Juniper certs are not talked about as much as Cisco.
I used the CBT nuggets course which I found very good and easy to understand like much of their content and the on-demand courses on the Juniper website.
The exam was overall fair and but seemed more focused on the JIR material and less about MPLS/LSPs which was good for me since I have more experience with OSPF/BGP/IS-IS in an exam environment and working knowledge.
If you are interested in Juniper I'd definitely ask your employer to pay for the All Access pass or pool a few interested peers and buy it. It's worth it in my opinion. The courses are very good and the labs I find are very helpful.
Good luck to anyone going for this one!