I'm planning to move hosting from Vultr to Hetzner. I can't fault Vultr, I've been with them since 2017. The functionality Vultr provide, their transparent pricing, and their technical support have all been great. I've often filed support tickets and had them resolved within a couple of minutes of posting.
However, Hetzner have better pricing (they'll give me roughly four times the compute resources for the same price as Vultr), have technical support that's reportedly equal to Vultr, and are based in a jurisdiction with stronger data protection laws. Additionally, they build and operate their own datacenters as opposed to renting space in someone else's, which really appeals to me as someone who tries to run as much of his own infrastructure as possible.
I'll have to add a Hetzner DNS plugin to certusine in order to issue certificates on the new infrastructure. That seems easy enough as the API looks almost identical to the one Vultr provide. I suppose there aren't all that many ways to manage DNS records.