You shouldnt have any issue with USB C to USB C. The problems of a year or more ago were related to early released USB C to USB A cables having a missing resistor or something like that, which put the charger in danger (whatever USB A charger you had). I assume unless you get old stock, most of these have been removed from sale.
I have a Nexus 5X and never had any issues with USB-C to USB-C. Build quality might be the only difference. Throughput should be little variance. I have purchased CHoetech cables with no issues and solid. I have also purchased a brand called iCASEIT, which had nice looking aluminum tipped cables. These started to come apart a bit - would not recommend.