I've yet to have a lockup, but I am not a heavy user. I use a Pro Grade Cobalt 325 GB CF Express card. I do not believe that the brand of cad matters, people have reported the issue with all the brands.
I have the same card w/o lockups. I have yet to hear about someone with the PG Cobalt having issues. I believe Model (pure min specs) makes the biggest difference and Brand is secondary. Only exception about brand that might tip the scales are the ones that are prone to getting counterfeited.