Auto Expressions seat covers are in the middle grade of seat covers available at most retailers from about 15 dollars to 60 dollars and what fabric they are too.
According to purchasers, Auto Expressions seat covers have good to excellent ratings. Many of their models offer a "Superfit" flap for a snug fit to your seat.
They have received good reviews, as with any seat cover, they are not going to match the exact specifications and dimensions of factory seats and thusly are more likely to rub and tear.