I'm not picky enough to travel with one (maybe if camping), but I love my Aeropress at home... it's definitely the best non-electric cup of coffee I've had (compared to pour-over, Bialetti Moka, french-press, etc). I've had Nespresso several times in hotel rooms and lounges that have them and wouldn't rate it anywhere above my Aeropress, especially with my preferred beans (usually a JBM blend or a Kona). I'd take an Aeropress and hand burr grinder over any electric machine I could even consider fitting in luggage... and there would be no need for electrical adapters!