The biggest difference is that you really do get your own private server running the OpenVPN and WireGuard daemons. Your team members get accounts on your server but no else does. Your server has a dedicated IP address for whitelisting, auto-scales with usage, and has no artificial limits on number of users you can add (though we do have recommendations for performance).
We're also adding site-to-site links with AWS/GCP VPC very soon and have transparent pricing.
The consumer VPN providers are pretty good for what they're designed for but are generally lacking the features businesses need. And the business VPNs are generally much worse to buy and use. We're working to build a consumer-quality business VPN.
Thanks for the question!