I occasionally use the services of this provider. It's an excellent choice in terms of price/quality when you need proxies with traffic payment, for example, for scraping competitors' websites. I don't recommend using them for streaming or downloading torrents – it can get too expensive (although, if you have a lot of money, that's not a problem since there are no traffic limits). The quality of the proxies is top-notch. They work reliably and don't disconnect. The provider has a convenient control panel with a dashboard, which helps track traffic balances and account balance. You can order both residential and mobile proxies, but I recommend using filters; otherwise, you'll end up with a mix of locations and types. Proxies can be selected down to the city and network number. Almost all countries in the world are available. Paying and using the service is also easy. You top up your balance, and the money is deducted based on actual traffic usage (deductions are in increments of 1 KB). The cost of usage is $3 for 1 GB of traffic.