This. It is a neat product, but nothing beats a mocka boiler. Lightweight, tested, well never break. I see not reason to buy this product other than me being a nerd and loving tech, but when i go on a hike i will bring a mocka boilder
Disclaimer: I am Italian, and even though I generally don't drink coffee, I've seen/heard enough moka vs espresso arguments (up to the fanboy level ;))
Not fun.