Future Proof. This monitor arm allows me to add on up to 3 arms now or in the future. Unlike most other arms even in Prism's lineup, this arm doesn't get obsolete just because you suddenly decide to buy an additional monitor. It fits my 32" X315pro, so any monitor smaller is definitely compatible.
A single-stalk design makes it sleek and less space-consuming on my table. It is also surprisingly sturdy given that both arms, and probably a third will rely on a center support stalk.
Overall, it is value for money and I am confident I won't be changing it for as long it is working.