I think a VPN account is better than a VPN itself because if you have a VPN account the data you transmitting is highly secure and there will not be a chance for hack. The data transmission will be in encrypted form. It act as a tunnel over the internet.
Another important advatage of a VPN account is the accessibility of it. If you need anonymous and secure internet access it is the better option. I have not been seen any disadvantage about VPN account. It also making the facility to access blocked or censored site like adult content site yootube..etc.... Even thought the service provider you selected is a good one, I don't have any direct experience with them...