Categories
User Interface: (1 to 5), slicker interface gets higher number
Learning format: (1 to 5), variety or quality gets higher number
Quality of Questions: (1 to 5), higher quality gets higher number
Price (1 to 5), more expensive gets lower number, however if price matches quality this number could fluctuate
Summary and Grade
A+ (20)
A (19)
A- (18)
B+ (17)
B (16)
C+ (15)
C (14)
C- (13)
D+ (12)
D (11)
D- (10)
F (9 and below)