I used Berkeley Review for physics, and thought it was great. It was very good at explaining things conceptually, instead of just throwing equations around. However, I started using their chem- and although it is very good- they give you shortcuts and such...I can't say that it helped "re-solidify" my basics. I took chem I more than 3 years ago, and can't even remember the most basic thing. I got to the 3rd chapter, and literally had to go to a textbook to fill in the gaps. I heard that TPR chem is very very basic and long, so I'm going to try that next...see if it helps. While reading Berkeley review chem, one of the most annoying (and frequent) sentences was "you may remember" and I seriously do NOT remember A THING! Oh, and I got an A in chem I, so I didn't fail the class either. This is just my experience.