They look good, but I personally wouldn't bother unless you've seriously hot-rodded up your engine (requiring more airflow), or your existing airbox or snorkel was damaged, etc. These low-restriction air 'gimmicks' are just that. They're an easy sell for mfgrs, and many (not necessarily this one) where you have a bare filter under the hood are a serious step backwards. Even if they HAD dyno numbers, what good would they be? It's not real-world conditions on your vehicle like you drive it. And some of these low-air restriction systems may not be engineered to drop dust or channel air as well. Dyno numbers can be skewed lot's of different ways.
I'm reasonably confident GM added n+.25 (25% more than it needs) on the air intake because that's what engineers tend to do. I have to say, I'm impressed with how well the Atlas engine is engineered and the H3 in general (not perfect, but pretty darn good). I would at least expect the GM engineers to accommodate airflow for the max rated engine RPM, (5,600 rpm?). And how much time do you ever drive at your vehicle's rated rpm going to work, the grocery store, off-road, or down the highway? Probably never. Therefore at lower RPM you're only ever sucking a small fraction of the airflow the existing pipe can deliver. Which is to say, a larger pipe is completely unnecessary for better daily driving engine performance and will have somewhere between negligible to zero impact on performance and fuel economy. You'd probably save a lot more in fuel by removing the truck's heavy 65# spare tire during daily driving.
I would offer up to put the money into other mods you need/want, or parts that one might not be able to buy in the near future (like a new sunroof gasket). Or buy a decent, used, Snap-on or Tech II scanner (if you don't have one), which I guarantee you WILL need (or definitely wish you had) at some point to help debug some sneaky electrical issue. Or, if you like how they look, what the heck ...go for it. Not any different than a brush guard. How often do I drive through brush with my hummer? Like never, lol. Anyway, just my thoughts, take them for what they're worth (not much ...lol).
Nice looking rig BTW!