Good to have a SDer comment.
But why does the reviewer (and another commenter on the review) say the upload speed increases? How does that even happen?
Shouldn't the upload speed to VPN server be the same as the ISP's upload bandwidth? On most residential service, that's pretty low. I don't see how VPN service could change your upload speed.
VPN can't increase your download or upload speed. The bottleneck is at your ISP. Probably an error or something.