Not only is Coinbase an extremely slimy, untrustworthy company seemingly entirely driven by bad AI, the amount of different currencies they accept is also very limited.
Bitcoin Cash was listed in an incredibly dishonest way. They “surprised” announced it at 8pm on a Tuesday night. Along with the “launch” they had disabled selling bch from the fork (you could only buy). The launch coincided with Roger Ver and numerous CNBC “stories” trashing Bitcoin. It was so shady Coinbase agreed to launch an insider trading investigation.
Worse, coinbase is dragging their feet improving their Bitcoin technology stack. At this point it appears intentional.
GDAX is one of the best companies out there in the field.
Note to others: a portion of the internet seems to relentlessly attack Coinbase because they listed Bitcoin Cash (BCH) months ago