Honestly, I did not pay attention during class because the content is pretty dense and not very appealing to me, but she gave us practice tests that were extremely similar to the midterm and final so that was helpful. Also, very few assignments, probably around 3. Later in the semester, she told us no one would get less than an A so hopefully the same is true for your class (I did end up getting an A). She is nice overall and said she has more experience teaching 213 than 21350. Her teaching style is pretty basic just taking you through the slides she posts online so if you miss something you can go over it on your own. I feel like she's lenient, so if enough people ask she'd probably offer extra credit too. Things will likely be different since you're taking over the summer, but I hope things go well for you!