1. Sample size of three people (one per monitor arrangement).
2. A 25" 21:9 ultrawide is not comparable with 2x 24" 16:10 screens. You'd need something like a 44" ultrawide to get the same screen width (omitting bezels)
2. A 25" 21:9 ultrawide is not comparable with 2x 24" 16:10 screens. You'd need something like a 44" ultrawide to get the same screen width (omitting bezels)
[1] http://www.displaywars.com/24-inch-16x10-vs-25-inch-21x9