Screen wall - inset screen or not?

I'm finalizing some of my screen wall dimensions prior to drywalling and wanted to get some opinions on mounting the screen.

Here is a side view of my screen wall as it's currently designed:



I had planned on setting the screen (AT SeymourAV) into the wall for two reasons:
1) to minimize reflected light from the screen to the surrounding theater (I'd be covering the surrounding surfaces with velvet)
2) to maximize the viewing distance (total HT depth is about 19'6")

As I'm getting closer to actually building this, I'm second guessing some of the reasoning.

Should I just make a flat screen wall maybe 28" or so from the back wall? Is there truly a benefit to setting the screen into the wall?

Thanks for any help.

For a flat wall, does it look OK just to have a giant wall of GOM with the screen mounted proud of the wall? Whatever frame I use (probably wood covered in Seymour's velvet) would probably be 1" thick at least.

Doing the flat wall would be easier to build and cover, as well as providing a bit more clearance between the LCR's and the screen. I just wonder if it would look to "plain".

Honestly though, I'd rather sacrifice a bit of "lights on" aesthetics for a better "lights off" viewing experience.

Thanks for the advice and photos. If I go with the flat wall then I'm going to have to re-think my screen frame design. When it's inset, the frame profile really doesn't matter. When it's sitting proud of the wall, is both visible and "touchable" to anyone who comes and checks it out. The 80/20 material is very appealing due to its ease of assembly, but I may stick with wood in order to get the profile I'm looking for (more of a wedge, like what SeymourAV offers).