My girlfriend loves her Gigi2, so I got her one to leave at my house. No more misplaced charging cables. Good texture, not super loud, charges quickly and lasts a long time.
I'm happy with this device. It is quiet, and the battery seems to last better than comparable devices from other companies.
My only complaint is that it has to be held in a specific way to keep the vibration in my hand from being the primary sensation. I believe this might be unavoidable with devices of this size though. It's not a deal-breaker, but it's a small annoyance.