When I bought my unit, the dealer provided CN and I asked for similar information. CN would not provide a membership number for me or sufficient details of their services. When renewal time came along, still could not get sufficient information to make a qualified decision. I gave up and went with GS-ERS. Some members have complaints, other praise, but I know what is COVERED and what is not. When you think your on double-secret-probation before signing, what suprises will come to pass after your check is cashed. JM2¢...