Cisco Routers - Battle and time tested equipment

We currently utilize Cisco routers as our primary routing platform across all of our locations. We depend highly on connectivity between our sites and the Cisco platforms we utilize help us achieve maximum performance and reachability.

Generally speaking the interoperability of a Cisco router to a different platform is very straight forward. The only place you'll need to tread lightly is if you're attempting to bring in a non-Cisco router/device and your network is dependent on Cisco proprietary technologies. Other vendors have attempted to implement compatible protocols that will interoperate with Cisco proprietary technologies but I'm wary of their effectiveness.

We are utilizing a different platform for threat protections and are unable to comment on the effectiveness of Cisco in this arena.

Generally speaking, if you're connected and up, from a router standpoint, you'll be able to keep access to applications up. Cisco has begun to differentiate themselves here with the inclusion of Viptela, and to a certain extent Meraki, to bring new methods of keeping continuous access available. Since these technologies are becoming built-in this gives them an advantage over other routers that require 3rd party support to achieve it.