I think it's better to use and choose a VPN that has a good reputation and indeed when a VPN is really needed it doesn't hurt to use a paid VPN to enjoy the results of a very good connection safe and comfortable.
There has always been a rule that the best VPN is the one made by yourself.
If you delve into the principle of VPN services, then all of them, even paid ones, have logging. And if you need to learn something about the user, many, without hesitation, will reveal all the information. Despite the fact that service advertising is a private and secure VPN service.
You must understand that trusting a VPN, you trust it with all your information.