Hey Alex, the pricing is definitely appealing. I currently pay for ngrok, but $15/mo puts it on my watchlist of things to get rid of.
One thing i do like about ngrok that i didn't seem to see in tunnelto.dev, however, is: - the ability to forward TCP ports (these basically get forwarded to 0.tcp.ngrok.io at a particular port) - the ability to specify a subdomain - this is particularly handy if you want something that's going to stick around for a while (i.e longer than a couple of hours)