Confused about CO/ALR devices versus AlumiConn and Copalum
If your goal is safety, install AFCI breakers.  The main failure mode of aluminum wire is arcing as a result of corrosion, and that's what AFCI breakers detect.  

If your goal is compliance with a gold standard so you are lawsuit-proof, then CO-ALR receptacles will suffice.  That's not my opinion, it's Underwriter's Laboratories.  They listed these items as safe for use in that modality, as captured in the product's labeling and instructions, which are part of the listing.  UL's testing presumes the end user will follow the instructions.  NEC 2017 requires use of a torque screwdriver, so to complete the compliance, set torques correctly.   Regardless, NEC permits CO-ALR, so clearly the NFPA agrees (that's National Fire Prevention Association). 

All we have against them is CPSC's opinion, since they have not provided any provenance to whatever testing they have done if any. Certainly it would be more persuasive if they could point to some rate of house fires from CO-ALR failures.  But all they say on the matter is "in real world conditions", which sounds to me like admission that they do work in spec conditions.  Certainly the most likely place for installs to deviate from spec (especially homeowner installs) is torque.

CPSC is correct that not every connection type is available in CO-ALR.  Here, enter the Alumiconn.  A lug system whose lugs are, amusingly, made of aluminum.