The best thing about calypso trading is that it provides me with real time quotes for my stock market investments, which helps to keep track of them in one place at all times without having to constantly check multiple websites or apps to see what's going up/down! It also allows you access from any device so I can view anytime anywhere if needed (and this saves tons of paper).
Sometimes there are glitches where some orders don't get filled right away but they usually fix those pretty quickly…