A nice size for games
Not all games can take complete advantage of the 21:9 aspect ratio of the curved displays, but the ones that can deliver a great gaming experience.
Master of your spreadsheets
For working with multiple applications side by side I prefer two 27-inch monitors. It's a lot more screen real estate since each is roughly 24 inches wide (60 cm) while a single 34-inch display is 31.5 inches (80 cm). But for seeing a lot within a single application, it's a great size. On the other hand, you may need to use scaling to be comfortable viewing text, which reduces the amount you can see.
It can herd a lot of cats
Back
Easy to get to connectors
So much nicer than having to fight with the stand to get my hands in some dark recess.
White
I don't really like the look of glossy white plastic that's popular these days, but it does make reading the connector labels a lot easier than many low-contrast black designs. There's a plastic cover with a cutout that you put over this hatch to hide the cable connections.
Base
It's not my favorite stand design, and it looks like it should support wireless charging or food warming, but it doesn't.
Raise and lower
Unlike a traditional stand, the display glides in a curve to raise and lower -- it effectively changes the screen angle and height simultaneously, so that it's upright when it's at its highest and laid back when it's lower.
Two USB ports
While the USB ports are easily accessible, there are only two.
Curve
The CF791's 1500R radius works out to 30 degrees of curvature, in the middle of the range for curved displays. In practice, it's a good fit when I'm sitting about 20-22 inches from the center so that the edges are just within the limits of my peripheral vision.
Venting
Curve
Down low
This is the tilt of the display when it's at its lowest. It makes a nice change from a typical monitor angle.
Down low redux
A single control
Samsung uses a four-position joystick to replace the multiple buttons most manufacturers use. On one hand, it makes menu navigation much easier. But you can't map any of the positions to a custom setting. There's a utility to handle complicated windowing setups and multiple monitors, but as far as I can tell, there's no way to easily switch among presets.
Picture controls
Samsung calls its presets "Magic Bright". Your options are Standard (the maximum color gamut), Cinema, Dynamic Contrast, Basic Color (sRGB) and High Bright, which really pushes the backlight. That's the setting that delivers its highest contrast, but I suspect it will reduce the life of the monitor's backlight.
Game mode
This setting seems to combine High Bright with Magic Upscale, a setting which seems to boost sharpness in (for me) an unpleasant way.
Color adjustments
Color tone adjustment options are warmer or cooler, and gamma offerings are the "what are they?" Mode1, Mode2 and Mode3.
FreeSync
Current settings display
Picture-in-Picture and Picture-by-Picture
You can configure the monitor to accept two video sources for simultaneous display.