Hi
The CEC dac has very few user/reviewer impressions online but mostly positive, don't have any personal experience on the DAC side. The CDT on the other hand has enough online reviews & user impressions & is a well regarded product. Basis of other CDPs I own/owned I feel CEC distinguishes itself very well and certainly has its own sound which adds value by
i) The vocal heft is more in CEC than other ones I have tried, this works in the favor for majority of the genres I listen to. Hindi music sounds sublime, works great with Jazz, country, blues & rock too.
ii) The detail retrieval is quiet good although some other CDPs bettered it comparatively
iii) It leans towards the warmer side of the signature vs other CDPs & hence you will see comments like analog sounding, organic etc. generally.
iv) Musicality is the key advantage (the presentation gels everything together in a very enjoyable manner that you will not necessarily focus on the shortcomings).
For any CDP (not only CEC) I would recommend an audition (if possible a home demo too) as most have their own traits which might or might not work per your expectation. Generally speaking everyone I know who has a CEC is quiet impressed with the same & people who auditioned it also have a similar opinion. Other CDT/CDPs I am referring to here refers to AL6000, Denon A100 & Simaudio Moon Eclipse