There are about 3,000 CyberGhost connection points in about 60 countries worldwide. You don't need to provide your real name, just a working email address, and you can pay in Bitcoin to remain nearly anonymous. As with most full-fledged VPN services, you can connect directly from your operating system's network settings or use third-party OpenVPN software to do so. You can also select from among VPN protocols and set up a home Wi-Fi router to use CyberGhost all the time.
— Windscribe now supports static residential U.S.-based IP addresses and port forwarding. The service has a new ad and tracking blocker called "R.O.B.E.R.T." There's also a new "build-a-plan" pricing scheme that charges you $1 per month per country you want to connect to, with 10GB of data per country included. Unlimited data for all the countries you choose costs another $1 per month.
In general, the answer is yes, it is perfectly legal (and normal!) to use VPNs, even if you are in places like China where VPNs are restricted. VPNs are used every day by businesses and individuals throughout the world for basic privacy and security purposes. Businesses rely on VPN technology and encryption for security reasons and it would not make sense for this to ever become illegal.
Before anything else, understand that if you want to use a VPN you should be paying for it. Free VPNs are either selling your browsing data in aggregated form to researchers and marketers, or giving you a paltry amount of data transfer every month. Either way, a basic rule of thumb is that a free VPN will not protect your privacy in any meaningful way.
These services offer many ways to connect, including without the service's client software; support operating systems and devices, such as routers or set-top boxes, beyond just the "big four" operating systems (Windows, Mac, Android and iOS); have hundreds, or even thousands, of servers in dozens of countries; and generally let the user sign up and pay anonymously.
CyberGhost has been around since 2011 and has come out strongly as a supporter of "civil rights, a free society, and an uncensored Internet culture." We really liked how the company specifically showcases, on their Web site, how folks normally prevented from accessing such important services as Facebook and YouTube can bring those services into their lives via a VPN.