i would tend to go with CW Post. My son and daughter did a Hofstra science program on Saturdays this year and there were a lot of issues. There is no curriculum, the staff is given a topic and then makes it up from there. So no lesson plans, etc. My daughter ended up with a good teacher who did the right thing but my son was not so lucky. I would not do it again. You might have a good experience but there is definitely a risk. I have heard that the program at Post is older and more established.