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.
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.
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.
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.
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.
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.