OASIS Programs?

Hey friendos! I am a current student about to take my only stats class here. Thing is, I suck at stats. Should I sign up for OASIS? I really think extra tutoring or like more examples and extra walk-throughs or something would help me. But I'm not sure if, in four hours a week, will two or three of them be a study hall? Cuz if so, I don't think it's worth it. Idk. What's yall's experience with OASIS math workshops? What can I expect?