I might have to replace my current monitor in the future. I see there are pretty good prices on the curved screen. 

Can it be mounted on a VESA stand.

What are some of the cons I need to be aware of.

Does anyone here use a curved screen, if so what size and would your recommend it to someone that have poor eye sight.

My current monitor is 23 inches. It is a very old Sceptre  LCD and has served me well.

From Google

Choosing between a curved and flat monitor comes down to your specific tasks and workspace. Curved monitors reduce eye strain and provide immersion for gaming or media. Flat monitors are the standard choice for multi-monitor setups and tasks requiring straight lines, like graphic design.The Case for Curved MonitorsImmersive Experience: Curved screens mimic the natural curvature of the human eye. This wraps the content around your peripheral vision, making games and movies feel highly engaging.Reduced Eye Strain: On large or ultrawide screens, the edges of a flat monitor are further from your eyes than the center, requiring your eyes to constantly refocus. A curve keeps all points roughly equidistant from your eyes, reducing eye fatigue during long sessions.Multitasking: By bringing the edges of an ultrawide display closer into your field of view, it is easier to see multiple open windows side-by-side without turning your head.The Case for Flat MonitorsMulti-Monitor Setups: If you want to use dual or triple screens, flat monitors are far easier to align and position at angles that feel natural.Design & CAD Work: For precision tasks like architectural drafting, graphic design, or video editing, flat screens ensure that straight lines and true proportions are not distorted.Better Viewing Angles: Flat monitors suffer from fewer visual distortions when viewed from extreme angles or if you have multiple people looking at the screen from different sides of the room.Which One Should You Buy?Best for Gaming: Curved monitors are excellent for single-player RPGs and racing or flight simulators. However, flat monitors are still preferred by competitive FPS gamers to avoid minor edge distortions.Best for Work: If you plan to use a single large ultrawide screen for office work or programming, a curved monitor is fantastic. If you rely on a standard two-monitor setup, go with flat screens.Size Matters: Curvature is most noticeable and beneficial on monitors 32 inches and larger, or on ultrawide (21:9 aspect ratio) displays. For a standard 24- to 27-inch monitor, flat is generally preferred unless you specifically want a slight curve.

I have one, but it's on my video server, which means all it's used for is running PlayOn (streaming capture software) and Emby (video storage organization and streaming across the network) . That being said the display is easy on the eyes, and it does have VESA mount points 

I have both ( I have 3 computers), no real preference between the two, and I do rendering on both types.  On the VESA mount, just make sure the monitor you are looking at has them.  There is usually a back view so you can see.  Some monitors of both types do not have them, some do.

Thank you RFreise and FlagonsWorkshop.  For anyone interested in the curved monitors- Amazon has for an amazing price (in some cases you get two monitors)

I have a very slightly curved ultrawide, and wish it was curved a little more. For a flatter screen, if it's wide (mine is 34"), the viewing angle is not optimal at the sides, so curvature improves that.

Thank you ChromeStar.