I just finished it.
There are some neat little tricks that were helpful on some of the problems. Adding and subtracting a number from the numerator of a fraction to factor and split it. Things like that. It's important to know your trigonometric identities, particularly the half-angle. Completing the square happens quite often too. Aside from that, you really should just fully understand all of the calculus I material. I thought the following topics were more challenging than the rest, and you might work ahead before your course gets to these sections:
Parametric/Polar tangents and arclength
Sequence and Series
Integrals with Partial fractions/trig-sub/by-parts.
The "material" for the integrals sections is not difficult, however, there were (for me at least) many challenging integrals that involved many "tricks" involving algebra/trig that I would not have considered using.