Been using it for over 10 years, changed to dedicated IP 2 years ago as some of the shared IPs were being blocked by some sites. Never had problems with the connection since and always got good help when needed from the support.
VPN stops working on a regular basis. Not even the dedicated plan works decently. Customer service is rubbish and totally incompetent unless they are sharing a dedicated server among multiple users. Their best answer is to blame every issue on the client.