any reviews/comments for CRS328-24P-4S+RM or CRS112-8P-4S-IN poe switches

I have massive performance problems with the CRS112. See http://forum.mikrotik.com/t/performance-problems-with-crs112-8p-4s/120346/1
But it was the only switch with fiber, PoE and 8 ports that fits into a 10"-rack…