Juniper Networks describes their MX series as a robust portfolio of SDN-enabled routing platforms that provide system capacity, density, security, and performance with longevity. MX Series routers support digital transformation for service providers, cloud operators, and enterprises.
HPE routers are best suited for the mid-sized enterprises, they have proven ability to cope up the LAN traffic, as well as traffic runs between two different sites, by using the MPLS or VPLS circuits. In our environment, we are keeping the HPE routers at the edge of the network connected with the firewall on the backend which segregates the inside and outside traffic. We are running the BGP protocol to load balance the inbound and outbound traffic coming from different admin routers.
I think the Juniper MX series is a fantastic option for data center connectivity and places that aren't very high touch, but need good reliability and uptime. These switches are a bit more difficult to use day to day, but their reliability and robustness make them a great fit for data centers.
Working with Juniper switches can be a bit of a chore compared to other brands, like Cisco or HP. This makes me drop the rating for usability down to a 6, because for higher touch environments, I wouldn't recommend a Juniper. Outside of data center use cases, a Cisco switch would be a better option.
HPE routers performs upto the mark, it basically provides the connectivity to external and internal networks, however sometime the crashes happen in the routers make them look bad. Overall, I am satisfied with the product they use most open-source stuff which makes them easily interoperable with other router vendors as well.
We preferred Juniper over Cisco for our WAN/Internet routing needs for a number of reasons. First was the price, the Juniper offering was much more competitive than Cisco's. Secondly, was feature set, Juniper's implementation of routing protocols, routing tables, and forwarding options are better thought-out than Cisco's (not to mention Juniper's longstanding use of commit/confirm/rollback features, which Cisco has only started to use recently, and only on some of their products).