Luv4Disney, I don't know what your bad experience was, but if you think it is something that can only be duplicated by staying in a Value Resort, then definitely consider staying in a Moderate or Deluxe Resort instead.
As to the All-Star Music Resort, I stayed there for the first time this Summer. I have a few photos of my room:
click here. There were three people in my party -- myself, my college-age son, and my grade school daughter. We had a lovely time at the resort, no complaints from me.
I know there will be plenty of Value Resorts vacations in my future. As long as I know what to expect from each of the Disney resort categories (Value, Moderate, Deluxe), and as long as I don't unfairly judge one category vs. another (it's not fair to assume that a Value Resort will have as many amenities as a Deluxe Resort), I know my family will have a wonderful time.
No matter what you decide to do, have a lovely vacation.