I give Windscribe 4.2489/5 stars. I pay 3$ monthly for 2 pro servers R.O.B.E.R.T. and unlimited bandwidth which also includes all free servers. No one else I'm aware of offers something like this for that cheap. Great service with almost the fastest servers. There's one or two other VPN providers who I would consider to be better however they are not free, so in terms of free options Windscribe is the best.

Got a life time membership years ago and haven't looked back. I love the cross platform compatibility though I have had issues with iOS app in the past.

The VPN is pretty nice for my needs, but having the whitelist adfiltering on even when the VPN's off can be pretty annoying. You have to either disable the extension outright (or, at least, disable the extension's adblock) or whitelist the site (or, at least, their advertising) if you trust the site and want to allow their ad on your face. (I'm usually relatively chill with ads so long as they're not intrusive.)

De très bon service propsé.