Energy in wall speaker choices

WORLD WIDE STEREO HAS THESE SPEAKERS ON SALE. I'm looking for any recommendations on them for using as a rear in wall or in ceiling use. Does anyone have experience with them?
Please give any insight you can.
Onkyo 90w x 7 receiver
Polk Monitor70 front
Polk CS2 center
room size 19 x 18 x 9

I was thinking of one set or two sets and use them as side channel also.


Energy EAS-6CST 6" Round Stereo In-Wall/In-Ceiling Loudspeaker $80 pr

Energy EAS-8C 8" In-Wall/In-Ceiling Loudspeaker $80 pr

Energy EAS-6W 6" In-Wall/In-Ceiling Loudspeaker $70 pr

bump