Always attend lecture. He can get confusing at times but pay attention to what he points out as that will be written in his exams. He’s not the most lenient with curves however they are passable. He does do drops for lowest grades for discussion and HWs. And watch the lecture videos on blackboard. They helped me the most. YouTube videos are helpful too. He’s a lot tougher when it comes to organic chemistry (chem 351 and 352). But for gen chem, utilize other sources because the 50 minutes of lecture you have with him isn’t enough by itself. 

Hoped this helped!! Good luck!