This item was recommended to me for use with my laptop whilst in hospital for several weeks. It was so simple to set up, easy to use and very reliable. Downloading a lot of games or films etc, I'd used up the 1G in 10 days but then, with less downloading, a £15 top-up (for 3G) lasted me 5 weeks. A lot of visitors to the ward asked me how to get internet access and I recommended this dongle to everyone. The only drawback is if you don't want to make purchases online and need to top-up using a voucher, they are not easy to buy. You have to ask someone to find an official "three" shop. It would be ideal if vouchers were sold at petrol stations, newsagents, supermarkets etc... otherwise no complaints!