I got fed up waiting for promises for the kodak Ektacolor developer becoming available. I have used this since the early 90s when I started colour printing. I moved over to Fuji developer which is simpler to mis and has a seperate starter and this is every bit as good at the Kodak variant. I mixed my 1st lot in June 2022 and with correct replenishment (it takes a bit of working out) it is as good as the day I mixed it.
The good point is it is a lot less in price (in UK) than the Kodak RA4 for 40 litres where the Kodak makes 20 liters, but I split the concentrates 50/50 with a friend who also prints colour so it is really economic with the concentrates making 20lts each, it works out at roughly £40 way less than Kodak. The last price for the Kodak RA4 was around £95.