The most common advice youll get here is "dont". At their best, superautos cant produce espresso that comes close of a reasonable manual at its worst.
With the exeption Jura, there also seems to be huge reliability issues. I cant remember how many times my Saeco Incanto went in for repairs, but our house became a routine stop on the repairers run to and from work (when Saeco did their own repairs - which they dont any more).
There are many tales of woe here, and my advice would be to avoid superautos - and Im speaking from experience, having owned the top-of-the-line Saeco. My brother ignored my advice and bought a new one about six months ago, and it has spent more time at the repairer than in his kitchen (and theyve admitted they cant fix it!).