Can anyone vouch for having a reliable, established, experience with debuginfod?

My 'make check' runs valgrind a bunch of times. Right now, each invocation is sitting and doing nothing for about ten minutes, before it apparently times out downloading something from debuginfod.fedoraproject.org:

poll([{fd=9, events=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAND}], 1, 0) = 0 (Timeout) poll([{fd=9, events=POLLIN}], 1, 1000) = 0 (Timeout) poll([{fd=9, events=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAND}], 1, 0) = 0 (Timeout) poll([{fd=9, events=POLLIN}], 1, 1000) = 0 (Timeout) poll([{fd=9, events=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAN

Whether using valgrind or gdb, I find that debuginfod gets stuck more often than not, and this is getting old. I don't know what it's beef is. I can reach debuginfod.fedoraproject.org on port 443 without any issues.

After perusing the man page I set DEBUGINFOD_MAXTIME=10, and things are slowly, slowly moving forward. But I'm wondering if anyone found debuginfod to be reliable.