I have an oversize granite-resin sink with a low divider, but I really don't use this in my sink.  I use it on the counter with my dish mat underneath.  I love that it is easy to store, and inconspicuous on the counter top.  I am able to easily tuck it into my dishwasher when not in use.  I do like the rubber tubing on feet, which keeps it from rusting if/when I want to use it in my sink.  It does sit up high enough to let water drain underneath without disturbing any dishes sitting on it in the sink.