If you ask me, it seems to work ok. It's obviously very limited, as it only flows EK's. You do get the odd anomaly, such as the the 380 doing .87 20nm behind the 777 doing .78, as described above, where we will intervene. But overall- it's a start.
It can't work unless everyone inbound is included: a few evenings ago there was a lovely string of EK's inbound all nicely spaced on their RTAs. The only problem was the 2 Fly Dubais in the middle....everyone into the hold.