I looked through Physical and General Science last year and it seemed like a lot of work for the student as far as answering the questions, doing the labs, etc. Don't get me wrong, I think it looked great, but thought it would take up a lot of time in our days.
If you use Apologia do you use it as written? If not, where do you make changes. Quite honestly, this looked to be quite a jump from what we have been doing - WTM methods for 7th & 8th.