Coffee tastes terrific when made in the X7.1!!   After frothing milk, it takes approx 10 minutes to cool down to make more espresso if you don't clear out the steam.
Simple to use and fast!   Making a latte used to take me 10 to 15 minutes, with the X7.1, it takes me about 4 or 5 minutes.   I think it tastes better with distilled water.