I experienced the same as wehmoen, download took 10 minutes and decompress has been running for a good 7 hours now, pv says eta 7 hours. So uncompressing might actually take 14 hours.
I wonder if dumping the logs in the console isn't slowing the whole operation.
Might also be that I'm running on hdd and not ssds
Posted a detailed tutorial:
https://steemit.com/hivemind/@emrebeyler/steps-to-restore-a-hivemind-database-snapshot