If you don't have a need to swap out drives mounted in the HDD cage (under the MB tray) and didn't need to swap out PSUs at all, it could make for a good bench case. Sides and top come off very easy and the front panel is pretty simple to remove. The only issue is if you have to add drives to the HDD cage or add something to the 5.25" bays....you have to remove the MB tray to get to those things so you can run power cables and data cables. If you don't need to swap out anything under the MB tray, then you're golden.
Looks of it used to bother me, but I'm not staring at it when I'm using my computer. Plus, I don't like RGB (thought it was cool years ago, had a clear side panel case and the LED on all the fans hurt my eyes and all the glowing and flashing lights drove me crazy) so having a case that hides the little things inside that do RGB (like the H100i AIO, yeah, I can turn it off, but I'm too lazy to navigate the software) is just a bonus.
The one thing that the case lacks is filters on all the openings. After adding mesh filter covers I get very little dirt/dust inside of the case. I got magnetic mesh filters here for my cases:
https://www.demcifilter.com/demciflex-magnetic-dust-filter-for-haf-xb-dust-filter-kit
Sadly, the only downside is finding a 200mm fan that properly fits the top of the case. You need a
Cooler Master Megaflow 200. This fan has proper mounting on it to screw into the top panel of the case. No standard 200mm fan will fit, at best you might be able to line up 2 screw holes on one side, but that's it. Finding this fan has become troublesome over the years. I found they are listed on Newegg, but they all seem to come out of China. I picked up a spare one for $17 a few weeks back and it took just over 2 weeks to get it in. Always nice to have a spare, just in case.
Another draw back is limited space for mounting any kind of AIO. You're limited to a maximum size 240mm rad and it'll have to be mounted to the front of the case. You can do a push/pull setup on a rad when it's mounted to the front of the case, but it does reduce the amount of space you will get for installing a GPU. Max GPU length for the case is 13", but an AIO and your fan setup for it will reduce the amount of space available to install a GPU.