I took this over a year after taking Math 1LS3. I had forgotten almost everything, but it was pretty easy to catch up and do well.
There were three textbooks you have to get. One huge one and two smaller ones. All of them had really good practice questions that were almost identical to some test/exam questions. I would get the textbooks. I didn't for the first week or so and was completely lost in class because I had forgotten everything about Calculus ILS3. If you took Math 1LT3 right after LS3 you may not need the textbook that much.
Professor Erin Clements is really nice and fair. Her exams and tests were really straight forward, she never tries to throw curve balls. All questions have been talked about or done in class or assigned as a homework question.
We were given the option of having a different marking scheme where the exam could be worth 90%. This really helped some students as the exam was just questions taken from the two tests we had, but with different numbers and names. The ones not from the tests were from examples done in class.
Overall I highly recommend this for those who want to boost their GPA or be entertained by the guys shouting "I LOVE YOU PROFESSOR CLEMENTS!!" in class.