Music and sound is a very personal choice, and yours may not be the same as the reviewer in the magazine, so the best thing is to read reviews of the E80 from other reviewers until you find one that has a similar sound palate to yourself.
FRAN
Keyboard Player and Keyboard Magazine are not the same, which is probably why you cannot find the E80 review.
MARK
Make sure you compare sounds to real instruments, as it has been found in many Universities and other establishments, that when people have heard the different keyboard/computer sounds and the real instrument in a blind test, a lot of the listeners have marked the real instrument lower then the artificial ones.
The PA800 has a new Sound Engine that is second only to the Oasis Workstation, and the SD5 also has some improved sounds over the SD1, so the only way to see if you like either is to try them.
BTW. Both the PA800 and SD5 are considerably cheaper then the E80.
Enjoy whatever you play

Bill