What would be the -rating of this review ( being the lowest and being the highest)? "Best music downloads ever"

What would be the -rating of this review ( being the lowest and being the highest)? "Great reader has some bugs Book rendering is superb UI simple and efficient. There is however an annoying bug that prevents me from giving more stars! It constantly uses CPU even after I switch away from it and I see two FBReader threads/processes constantly hogging my two cores. I finish reading sessions by switching to FBR's app properties and Force Closing it else my battery would last considerably shorter! Of course that also means FBR reading sessions can't last too long without recharging...."

Q: What would be the -rating of this review ( being the lowest and being the highest)? "I love psp 🎮"
A:

Question: What would be the -rating of this review ( being the lowest and being the highest)? "Good lights Best"
Answer:

*Question*
What would be the -rating of this review ( being the lowest and being the highest)? "Great reference. I boxed my 24 vols & put in storage."
**Answer**

Q: What would be the -rating of this review ( being the lowest and being the highest)? "Very bad Demands lot of storage space even when more than 26.93MB available (thats the downloading memory shown)"
A: