We get it here locally OTA, just like ION, as well. I didn't even know this channel was on 402.I thought pretty much everyone gets Univision either on 402 or via a local channel.
Even though many people who frequent these forums may or may not watch very much Spanish programming, the ratings are probably better than most of the cable networks we have in HD.
For example, the evening news on Univision has consistently trended similar to Fox News' prime time ratings (tops among the cable news nets, and frequently top 5 among cable nets)