My experience with CTC legal support following a SMIDSY was excellent - handsome payout 9 months after accident. I know some folks who went differnt routes and are still waiting 2 years and more post accident.
Dunno about BC
That's more to do with the quality of the solicitor you got rather than the CTC. My accident claim is being handled by the same firm, the No Win No Fee contract is standard, a non member of the CTC would have the same contract, there is no member benefit and RJW are not the only experts in the field.
If the only reason to join a club is third party insurance, it seems a dear way of doing it. I had an add on with union membership that offered third party insurance for anything, plus free legal advice, cost was considerably less than CTC membership.