As a mass produced alloy product, Australia and Quintrex in particular produces some of the best in the world. They are top notch products and we should be proud of that. Many brands in America are still riveting their 18ft hulls together.
In comparison with the second tier Telwater products like Stacer and Savage the Quintrexes are certainly a more premium product and it's intentional of course. Some models may look similar and compete in similar classes, but there are some very key differences.
Stacer/Savage still have flat side sheets, i.e. no flared bow and that's a pretty big deal. Compare say a Stacer Seamaster to a Quintrex Fishabout Pro - no comparison in the side pressings, Quintrex are a much drier hull as a result.
Quintrex have superior bottom pressings in their models as well.
Much more stitch welding in the Stacer/Savages as opposed to full welding in the Quintrexes.
The flagship Telwater hulls like the Frontier range do not have a Stacer/Savage equivalent.
In terms of manufacturing, you will find more apprentices and generally less experienced tradesmen allocated to the second tier products before working on Quintrexes. It sometimes shows in the weld consistency.
There are also smaller details such as fittings that are superior on the Quintrex product.
Take in combination, the Quintrexes are a much more polished product, although not always obvious to the average punter. Stacer/Savage are fine products in their own right.