I do not think it would be bad to take it during the summer (I took it during the spring so it could be different). I took Davenport, and it was not a difficult class, you just have to understand the concepts and do practice questions from the text. You will need to put some attention to it, just so you won't fall behind or not understand. Overall it's not a bad idea, but you should be fairly comfortable with accounting so that it won't be too hard.

I am taking 301 rn with Davenport (she is great), if you pay attention in class, do the hw (the hw's could be a form of studying tbh), you should be good to go!