Kraken has gotten better since their big rewrite (just this year), but it's still not as great as other options (like GDAX). It is better than it was though.

Kraken has gotten better since their big rewrite (just this year), but it's still not as great as other options (like GDAX). It is better than it was though. Also, Kraken has margin trading (and shorting), and GDAX doesn't (if you want to use those tools).