Visible in its early days and now has significantly changed, they receive the same priority as postpaid Verizon now. Ping times and speeds are usually around the same as Verizon. Visible+ just gives you a higher priority for the first 50GB on LTE/Nationwide 5g over the Visible plan.
If you're in a big city - it would be best to go with Visible+, if you're in a rural or small town, regular plan may be enough. You could go with the base plan, see how it works, and then upgrade.