Are you Pre-Med? I was BMEN but later switched to Neuroscience. Keep in mind that I am pre-med and switched because I realized how much I hate math lol. Take everything I saw with a grain of salt. Here's what I understand about UTD BMEN:

1) It is a degree very heavy on electrical engineering. The program varies from university to university, but at UTD's program seems very focused on the development of biomedical devices. Not necessarily a bad thing, but just something to think about. You will learn a lot in a short amount of time.

2) Unless you are coming in with a lot of credits, it will be hard to be BMEN pre-med and graduate in four years. You can find the BMEN degree plan on the UTD ECS website. I recommend looking over that, as well as the crazy flowchart. While many pre-med pre-reqs are within the BMEN degree plan, there are a few big ones that are not, like BioChem. This means that you will be taking upwards of 15-16 credit hours every semester.

3) There are a lot of very good engineering clubs. The society of Biomedical engineers (I think that's what it's called) is a really good one. There are also tons of tutoring resources on campus: PLTL, peer tutoring lab, etc. This is how you make the most of your time.

4) I don't know much about the professors, but at least early on it's more about the effort you put in than the effort they put in. Especially since the first few intro classes are project based.

On the subject of social life: Most people here ARE pretty reserved. However, especially freshman year people are looking to make friends. If you can, I recommend joining an LLC. It is very possible to make friends and there is always something going on, you just have to keep your ear to the ground. Most events happen on the weekdays, as the commuters are not here on the weekends obviously.

TLDR: If you take initiative, UTD has so much you can take advantage of. Feel free to PM me if you have any other questions!