I'm fortunate that I haven't installed the latest firmware and I obviously don't plan to. However, my biggest concern is not so much the operation of the NVR but the total disregard Zmodo has for any kind of proper business ethics or practices.
It is totally inappropriate to intentionally update older units so that they cannot perform the basic functions that were advertised as selling points. Zmodo has a responsibility to update existing units so the features that were touted start working again.
If they want a unit that requires their software and cloud, then come out with a new unit and sell it as such.