Walked into Harris Scarfe (West Lakes in SA, at least a dozen still there.) and saw this cookset heavily discounted compared to the rest of the Bluestone stuff there. It's not incredible, and the RRP is definitely a bit silly, but it's decent set at this price (Previous best price I could find was $99). My partner uses this particular one and it has been going strong for a good year now without any visible issues/discolouration.
They had pretty much a 30-50% discount on virtually all kitchen ware there too, so plenty of other choices if you are looking for something else to add to your cooking tool set.
They are good but you need to be careful because the finish is easily chipped