Mark, it actually has a slight bow in it more by accident than design as it pulled when I welded it!
We like the low height as it looks mean..... if it proves too low in use, it bolts on so not a huge deal to go bigger.
The material it is made from does have pretty square edges but when it gets polished I expect to lose some of that.
The basic shape is 32 style and they are all flat laterally so who knows...
I tried a curved screen on this when it was mine years ago and it looked awful.....