I can not see why it would not be comparable to a stove top moka pot coffee for espresso. Which is not a very useful comment really, but the reason i posted was to just bring up that, in case you were looking for pump/lever type espresso (i.e., like you get at a coffee shop), this will not deliver that. Moka pot coffee is a bit different. Not bad, just different. Some actualy prefer it. I have both a lever machine and a couple moka pots (stovetop), and use them both.
So, if moka coffee is what you want, and you do not want to deal with, or don't have the option of, putting a pot on the stove top, I would say go for it.
Concerning the ability to make a cappuccino or latte, that I am really skeptical about. I do not see it making foamed milk. More just moka coffee with hot milk added.