A lot is packed in this pedal. You need to check out a longer dedicated review. You get several delays, a reverb, up-down octavers (can be used without delay), loopers etc. Delays sound awesome, octaver too. The reverb is not that great for me, but that's just taste.
There's actually 6 controls in 4 knobs. Two controls (effect params) are reached by pressing and holding the button in the middle. It keeps the pedal small and at the same super-loaded with features, but a tad more difficult to use. Also, sometimes the pedal starts to behave funny. A knob doesn't work as it should or similar. It requires a "restart" (disconnect power and reconnect) to get back to normal working mode.
Still, it's brilliant.