Hi Ken,
I dont own one but based on reviews of the CPC i would say its a darn good telescope. Suggest you check out the reviews at Cloudynights and the one done by OPTCorp, also check out the images taken with CPC. I cant find it but i know there was an excellent pic of Saturn done with one.
http://www.optcorp.com/product.aspx?pid=6950
Also I would have though based on what i have read that the CPC was better compared with the LXD than the LX90.