Which IIyama monitor are we talking about?
The author references E2418HS-B1 and E2481HS-B1 in the same section.
It looks like the latter (E2481HS-B1) as I've got four of these on my BOFH desk at home - selected for the multi-monitor-setup-friendly thin bezel. They're bright with pretty good viewing angle. I don't use the provided stands but I understand they have height adjust, rotate on the base, and will pivot portrait/landscape.
With multiple monitors there's no good place for the buttons as they either increase bezel width or can be obscured. Having them on the back is perhaps the least worst option.
I don't know where the author got the £130 price from. I bought from Flea-Buyer two months ago for £160 each with free delivery when (review device source) Overclockers were charging more plus delivery. Ebuyer's price has gone up since then but even now Overclockers are charging £150 each plus delivery.