The other, more recent compilation "Feel the Noize: The Very Best of Slade" also has a good selection of songs, the pieces sound there also something fuller and more balanced than the "Wall of Hits", but it was unfortunately quite at mastering these newer Compilation strongly the dynamics compressed in order to obtain a pure CD (as the most new CD's the case). The consequence of this is that the CD then permanently easily fatigued and somewhat annoying when listening.
"Sladest" provides the most balanced sound, and it was not yet made any dynamic compression. Recommended!