We could not find many reviews for Wifio for our trip to Switzerland, so we took a gamble and booked with Wifio as the other companies were about $250, US dollars for a 15 day trip, and Wifio was about $55, US dollars. Also, Wifio was unlimited Wi-Fi unlike some of the other companies!! Needless to say, we were thrilled with how good the Wi-Fi was. Pickup at Zurich Airport was easy as could be, with detailed instructions- with pictures- as to how to find the counter to pick it up. Wi-Fi was fantastic in every section of the country we traveled, including more remote villages. The only place it didn't work was going under tunnels on the train- as to be expected! Held a great charge- super simple return in a prepaid envelope- had all the charging devices. We only had to charge it once when we were gone for over 12 hours for the hotel and just used one of the power banks we bought on Amazon for our cell phones. Honestly, it was so cheap that if you don't like it, you can just return it and eat a little money and order a different company's Wi-Fi to your next hotel. I highly doubt that would ever happen, but that's what we planned on doing! Overall, would definitely use this company again!