Regarding Kodacolor II, I learned to shoot on that stuff in the 70s on a 1930s Ikonta. I was fortunate enough to live near one of the UK's largest labs (PTP) which was certainly processing and printing on an industrial scale for amateurs. The prints from those days still look pretty good for the most part but in 2017 I decided to scan some negatives from 1976 and was able to get what I consider better images from them compared to the rather mass produced prints. Kodacolor II was certainly a capable film for it's day and nothing bettered it until Kodacolor VR came along. I was also using Ferrania sourced "Prinz Color" film at the time (boasting "NEW C41 process") because PTP offered a roll free with D&P. It was acceptable but the colours were muted and there was more grain than Kodacolor II. Agfa colour film seemed to be stuck in the 1960s at the time, and I don't recall seeing any Fuji but Sakura was around and it also looked dated as soon as Kodak brought in Kodacolor II.
Phoenix isn't there yet. But it took Kodak, a behemoth at the time, a couple of years to get from the C22 films to Kodacolor II once they started. Harman, with their small crew, have achieved a near miracle to get this far in what seems to be 12 months. Maybe progress will be slow and steady but their interaction on social media suggests they intend to arrive at a more "normal" C41 film. Many people are excited, some are understandably not ready to buy Phoenix as they see it as too "funky" for their tastes. Harman are now interacting on social media saying that these folk may well like future products.