Professor Runnegar is really nice. He is passionate about the material and his slides are very well organized. However, sometimes he can be dull sometimes, as all he does it talk in the same exact tone. The material is very interesting though.
TA's were excellent. The textbook is not necessary, as the tests are based on the lectures. The book is a great read, but you'll be fine with a PDF or not buying it at all if you don't want to spend +$100 for it.
The homework and classwork is really easy, and is given every week by the TA during discussion, where the TA goes over the material discussed in the lecture. And there is a midterm and final of course.

Very Very knowledgable, but definitely does mean he can teach.
His lectures jump around a lot and are quite unorganized.
I found him very hard to pay attention to in class, and although it is a GE, I would not suggest taking it unless you have a natural curiosity for science, and remember high school chemistry.
He writes the midterm in a way that the question itself is harder than the material. (ex. "pick the best answer" all of them right.)
I learned everything from my TA.
I got a B

At best an average teacher. His lectures were pretty confusing. I found it difficult to keep myself focused, and I'm generally pretty good about that. Also his slides are usually just pictures, and definitely will not contain the material he tests on. It's not difficult to absorb SOMETHING interesting from lecture, but it is difficult absorbing what you need to know for the exam.

I really think he could have done a better job at writing his exam. He likes to use "Which is not true" sort of questions, which would normally be ok, but a lot of the time the wording is really ambiguous and unless you paid close attention to his phrasing in class you would be caught between two choices at best. Also, many of his questions were based on one of the fifty thousand numbers he throws at you during class, so it's difficult to decide which numbers to memorize and which to not.

He is a nice guy though, and it's clear he has had enormous experience in the field (working for NASA). If you can figure out exactly what he's looking for then this class would probably be a lot more enjoyable.

Runnegar co-taught this class with Professor Margot, and I always dreaded Runnegar and looked forward to Margot. Since the two taught in the same class, it's easy to compare and say that Margot was much better. Runnegar's lecture slides were all photos and diagrams, but no words or explanations, so you couldn't miss any of what he was saying because you had to write it all down. Also, his midterm was much harder I thought because the questions were all which of the following is NOT true, which I personally can't stand. All of this is simply in comparison to Margot, who put everything on the lecture slides and had easier tests. If you have the choice between the two for a GE or something, take Margot.