I've had this build completed since Feb 2019, but just now putting it on here. This build is used primarily for gaming with a touch or video editing. The Air 540 was a carry over from my previous build. Remains my favorite case. It may get switched out for a Corsair 680x or similar dual chambered case in the future, but for now it is more than fine.
I moved to an all SSD storage configuration after holding on to a 2TB HDD for years. SSD storage has drastically dropped in price over the year, and I made a decision to leave mechanical in the past for the new rig.
The RAM was a splurge but I found the Royal line to be so ridiculous that I wanted to seek it out for my rig. At 3600 speed, it's also plenty fast. Used the XMP profile on the Maximus XI Extreme, and haven't had any issues. I would've went with the new Domintaor RAM from Corsair to keep everything consistent, but it wasn't out at the time. Gaming on the PG27UQ is a treat and the 2080Ti allows me to get above 60fps at 4k or very, very close in most modern games. With ray tracing enabled that's a different story, but for regular play, it's a great 4k card.
I use a Logitech G613 wireless mechanical keyboard paired with a G703 and PowerPlay for peripherals. Overall I feel this is a pretty well balanced high end rig, with no one area holding me back. Enjoyed building it. Plan to keep the Z390 platform for some time, while upgrading the GPU in the future.