Product review (3 stars): Caused slow drain but can be modified
I purchased this because my built-in splash guard is beginning to deteriorate, and adding this is a lot easier than removing the disposal to undermount a new one. It fits well, looks good and sits snugly, but it's causing water to drain very slowly, as though the drain were completely obstructed. I just read another reviewer here who had the same problem and said he trimmed the holes for better drainage and it solved the problem. I'll be doing the same.