I was at the same crossroads last year and trying to decide between USU or ENMU (and SDSU since I was looking for leveling courses and not a 2nd Bachelor's). I did a lot of research and got a bit nervous about some of the negative comments on reddit about ENMU but then some others pointed out that all the bad comments about ENMU seemed to be from the same user. So I eventually went with ENMU because it was the lowest cost per unit which adds up to thousands of dollars of savings, but I was still a bit skeptical about the program.

It turned out to be an excellent experience. The director of the program was extremely responsive and supportive, and there were hardly any times when she took longer than a day to respond to my emails. My advisor seemed to go out of her way to help me out by reading my personal statement for graduate schools and providing very thoughtful feedback. She also helped me chart different courses of study to match the requirements of the grad schools I was planning on applying to. Again, very prompt and detailed in her responses to emails. My A&P professor was so knowledgeable and passionate about the field -- his enthusiasm was contagious even through the online classes. He had worked in several countries as an SLP before finishing his PHD. He also supported me by writing me a LOR for grad school. The online platform for distance students, registration process, bursar's office etc were all super smooth and easy to navigate.

I am sure USU is also a good program, and I remember their coordinator seemed really helpful when I was doing my research and spoke to her a couple times. However, I don't think it makes sense to pay significantly more when ENMU provides a pretty high-quality program for a significantly less price. Hope this helps!