I don’t have either (mine is an Isomac Tea III) but I would go for the Expobar. It’s based around the Faema e61 group head, like many similar machines both home and commercial. As a result, spare parts are easily available and cheap as chips. If by ‘doing it for real’ you mean opening a cafe, you’ll find many parts interchangeable with the shop machine.
I don’t know anything about the other one, but you can bet it’d cost more if it went wrong. It’ll look naff in a few years as well, whereas the e61s are timeless. And didn’t Heston Blumenthal make a big deal of using Nespresso pods in his restaurant a while back? And now he wants to flog a proper machine?