I decided to test the service, got a bit delayed with the payment, but the support helped me promptly, which is quite surprising these days (they responded in 30 seconds) — that deserves praise. As for the quality, the proxies seem to work well in my area (I'll keep that to myself). Regarding the rates — at first, it seemed expensive, but after using it, I realized that this pay-as-you-go method is actually much more cost-effective and convenient. Moreover, the proxies are still clean, so I don't mind paying 6 dollars for a gigabyte. The interface is intuitive and clear, without ads or intrusive blogs or links. In my opinion, it's a 10 out of 10, but time will tell.
