I think the performance and service are fair for the price.

I have used several VPN services for multiple years.
My favorites are around Nord VPN and Surfshark VPN, which I consider to have an excellent price/performance balance.

In this context, I think Goose VPN is very cost effective for the price of this appsumo.

As for the server speed, I feel that Goose VPN's speed is a little unstable depending on the time of day. Also, I think the speed is a little slower than the above two companies even during normal times.

However, I almost never felt stressed when surfing the Internet or watching videos.

Also, I feel that there is some compatibility with the service.
On the TradingView platform, which I use frequently, I found that Goose VPN tends to be more stable than Surfshark/NordVPN.

I do have some concerns regarding how long the lifetime contract will last, but at this price, I think the risk is minimal.