NYS SPP-L1 : Cautiously optimistic

I bought 2 of these units and now have about 80 of the combined 96 connections patched in, all working problem-free. My only beef is that it's maybe a bit too easy to pull out the rear connections and create problems that way. I was ready to return these with a scathing comment about how 10 of the cards weren't working, until I realised I'd accidentally pulled out a bunch of cables from the back. I was particularly worried about another review I read on here, regarding harmonic distortion occurring on signals above -19dBfs. I tested for this with a sine wave generator and found no distortion on any signals right up to 0dBfs. Hopefully it stays that way, as the other reviewer's units were 3 years old, and mine are brand new at the time of writing.