I haven’t used it but it’s probably legit enough. Take a look at their comparison between free and paid version, it seems their business model revolves around trying to upsell you their premium service, so you miss out on full speed etc.
Dont use CyberGhost, its a scam.
www.reddit.com/r/vpnreviews/comments/2reegv/cyberghost_vpn_a_nightmare_and_scam_beware/