It's still working out ok for us. We're doing the 2 DVDs at a time, and while I understand netflix always was suspected of "rate-limiting" people who had too much churn, we must not be anywhere near that since turnaround is still just a few of days. We're not impulse watchers so it's fine.
It's still tons cheaper than individual stream rentals, there's more device flexibility, a lot more choice, doesn't require blackbox DRM on the devices (they are probably going to force secure enclaves on linux for their DRM at some point once the kernel patches propagate).