Hands down, Nespresso is the easiest way to make decent espresso at home. Their space-saving Inissia model is down to $85 in today’s Amazon Gold Box, the best price of the year.
You could spend hundreds of dollars to buy a 40 pound behemoth that makes slightly better coffee, sure, but if the Inissia is good enough for Boris Diaw, it’s probably good enough for you.