To be honest, C-shape cooler has often be complicated with other hardware compatibility (RAM, VRM heatsink, GPU, etc..) and maintenance (more difficult to reach area near cpu)
I was using such cooler in my former setup in early 2010's (Father of all gaming mini ITX case : sugo 07..)
Right now I prefer so much either compact aircooler (90x90 like Noctua nh-l9i/a or up to NH-U9S) or watercooling (Asetek 645LT is really great) to keep clean motherboard.
Edit : for comparison I'm adding IS-60 picture from @rfarmer
The Asetek 645T is not viable long term solution. It’s a low volume niche product that has already been discontinued once. I think Dan from Dan Cases was the one who convinced them to bring it back, but it’s likely to not be profitable and stay in production. Asetek is an OEM, they don’t normally even sell products to consumers directly but none of their retail partners were interest in selling it.
AIOs have a shelf life, they lose water over time through evaporation and pumps go bad. So any case based around this AIO will probably not be usable 3-4 years from now when it’s discontinued. Which is why I want a SM550/650 with 75mm CPU clearance so I can fit a decent air cooler. The NH-L12S cools as well as the NH-U9S tower cooler and is 70mm. I love the look of the SM550/650 but won’t buy a case based around the 645LT. And I don’t want the taller SM570/580.