I have ross track/ switches. I looked at the atlas track and it looks more realistic to the eye I think. Atlas as others have said have had supply issues but that seems to be over. One thing with Atlas is you may be able to get it at a discount since dealers sell it& may offer it on sale, Gargraves and Ross are fixed price ( Ross IME has the best price on GG flex track).
Ross offers great customer service and as people have said, they will fix their products. The only negative with Ross is they build it to order, so it isn't something that will come fast ( I can't speak to let's say ordering 1 switch, talking track and switches in number, not individual pieces).
Obe thing about the look, having seen both Atlas and Ross/GG, when you ballast it&do things like paint the rails, to me the difference isn't all that striking ( and folks, that is my impression, beauty is in the eye).