Another vote for Nespresso here! It's easy to make a latte (our machine does not have a milk container, it's the Citiz model). Just put a small mug half filled with milk in the microwave for 40 seconds, whizz with one of those little stick aerolatte thingies, put the mug under the Nespresso machine and add the coffee! I find I need to whizz a little more as the coffee goes in.

Easy peasy