I agree that this setup might not be unique but it is definitely premium with the 21:9 widescreen center landscape monitor and the 2 side portrait monitors.
Before, I had two 19" 1280x1024 monitors.
The 2560x1080 center landscape monitor basically replaces the two previous monitors.
Then you...
Here is my Portrait/Landscape/Portrait setup using the Ergotron LX Triple display lift.
The center landscape display is an LG 29EA73 and the 2 side displays are LG 24EC53s.
My desktop is extended across all three monitors using Eyefinity.
The setup from left to right is 1080x1920...