Never used the Intellijel case, but have thought about getting one because the 1u tiles make a lot of sense to have minimized in that row.
I do have a MN Shared System in the older wooden case, which I love. Super robust, and the cv distribution and audio I/O are really helpful. I also have a Mantis with a Rosie and I like the crossfader and stereo fx return on it enough to keep it in the other rack…
My only wish is that the MNSS case had 4 rows of 104 hp…