Riddle is a good school. Whether it's worth the price is debatable. I know a number of people who earned degrees and did their flight training at ERAU; some are excellent, knowledgeable pilots, others aren't. Flight training is more about personal dedication than it is the curriculum in which you learn.
Riddle can be a good networking tool but, again, it depends on how much effort you put into building your aviation network.
If you're considering an aviation degree, have you looked at some of the other schools that offer the same? Purdue, Southern Illinois, St. Louis, UND, Lewis, Eastern Washington, etc., etc.
As for the utility of an aviation degree, that's up to you. In my opinion, it's neither worse nor better than most liberal arts degrees. If you have a technical area or financial area of interest, an engineering or business degree would serve as a good back-up.
At the end of the day, ERAU will get you the same certificates you'll get anywhere else. If you think Riddle is a good fit for you, fantastic. If somewhere else might be a better fit, Riddle is not even close to being the only option.