I have one of the cheap ones, and only use it once in a great while. From the Walmart page, it's most like this one
. A huge downside is that you have to wait for the machine to cool before removing the lid and adding more water. If I could make more than 2 servings/1 Amy serving
at a time, I might use it more often/for guests.
Then again, I tend to just get a coffee at Starbucks, rather than espresso based drinks.
At my old office we had a cappucino machine with a resevoir that could be refilled at any time. Oh, we used that one a lot (and, subsequently, I gained about 10 pounds with all the sugar/flavored syrup I was using).
That's my experience.