DCM-390 and DCM-290 are given a 4 out of 5 product rating in 'Consumer Guide Products." 
Here are the direct links to see the reviews:
http://products.howstuffworks.com/denon-dcm-390-5-disc-cd-auto-changer-review.htm
http://products.howstuffworks.com/denon-dcm-290-5-disc-cd-auto-changer-review.htm
http://products.howstuffworks.com/denon-dcm-390-5-disc-cd-auto-changer-review.htm
http://products.howstuffworks.com/denon-dcm-290-5-disc-cd-auto-changer-review.htm
