I just spent 30 minutes on the phone with a tinet.net NOC technician.

The short answer:

5-10% packet loss @ ormuco-gw.ip4.tinet.net [216.221.156.110]

This IP is being advertised to multiple circuits (3 maybe?). The tinet.net is running fine. The NOC tech has confidence one of the others was fine too, and pointed me to the NOC for Cogent Communications, cogentco.com.

I just sent them an email, hoping to get the same outstanding service Tinet.net provided.