I got the X - added it to my shopping basket as an afterthought and ended up using it as my primary WAN router (replacing pfSense on VMWare ESXi)

I had someone tell me on Twitter to try out the better models because there is a lot you can do with them, and i've seen references to it before on other forums (it seems it is common now to do VPN routing setups on EdgeRouters)

I might give it a go - I do like trying different things out to get some experience across diff products