I've downloaded Sandbox HDF_3.0_vmware_12_06_2017_21_59_43_ambari.ova. Started it successfully, connected to most of its services except Superset & Zeppelin. (used Advanced HDF Quick links page to reach them). Tried admin/hadoop for Druid Superset as instructed, with no success.
Please document the credentials for these.
Thanks,
Mihai