Cloudflare

O produto oferece ótimo gerenciamento e segurança nos recursos de proteção.

Pode ser melhorado com a sugestão de usuários para a melhor visibilidade da página de gerenciamento.

É um sistema muito fácil de utilizar. É necessário possuir algum conhecimento em apontamento de DNS.

Nada em específico que não tenha gostado.

I can only say positive things about Cloudflare: it is fast, very easy to set up, never gives problems, it helps you even when the site temporarily goes out of service, you do not need assistance because you already know that you will not have big problems. All this is free (unless you need some specific options that you will pay dearly)

I would have only two details to say:
When you add the site in Cloudflare, he goes to scan all the possible subdomains and, if he receives the famous answer 200 (so that the page, and consequently the subdomain, exists) he will automatically add it. What does it mean? Some hosting always give a positive answer, even if the subdomain doesn't exist. In this case CF will create hundreds of non-existent DNS records to be deleted one by one (because it does not provide for bulk deletion)
Second thing is that unfortunately it does not plan to have dedicated IPs, even in the high paying plans.