I was intrigued by the concept of a pore vacuum - I've seen them in the warehouse, one of those 'as seen on tv' products, but I wouldn't trust them to not damage skin.
Coming from Manicare I felt comfortable using this from the off. The app installed and worked no problem and connecting the app and device was easy.
I used the sensitive nozzle for the first use, but went to the regular size as I was comfortable using it.
It glides on the skin but you do need to push quite hard, which can make it suck on a little tight depending on the contour of the area you're working on.
I've been using it twice a week and my t-zone looks visibly clearer. It feels much less abrasive than a pore strip or coarse exfoliator, but is also much more effective.
I would definitely recommend this - it's definitely more useful than gimmicky!