What are some alternatives?
When comparing OpenWrt and Junos OS, you can also consider the following products
MikroTik RouterOS - The main product of MikroTik is a Linux-based operating system known as MikroTik RouterOS.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Cisco IOS - Cisco IOS is a family of software used on most Cisco Systems routers and current Cisco network...
LibreMesh - An Open Source Sofware for Geek-free Mesh Community Networks.
Gargoyle - Gargoyle Router Firmware home page
ClearOS - A very good alternative for Windows Server, for free