CloudFlare Tunnels practical experience?

Hi,

does anyone have experience with the now-free-for-all CloudFlare tunnels? https://blog.cloudflare.com/tunnel-for-everyone/

I’m currently having trouble with ZeroTier on a CGNAT provider that eats (most) ZeroTier UDP return packets, and I’m wondering how well CloudFlare would work under those circumstances.
I’m assuming that since it’s CloudFlare, it would be fairly speedy and reliable.

Thanks!