Functional Issues: I day trade as a hobby. I use Binance US due to limitations imposed by regulatory agencies with which platforms are available to me and because it has lower fees than Coinbase, which has other issues. The app is fine for placing market trades, but is pretty awful with delays on execution and notification of trades done as limit orders. It's happened a few times where a trade should have executed and it will still show in Open Orders for hours until notification hours later.