The auto tool changer are good but come with there own limitations so it’s not as clear cut as it would seem at first
If you have a need to make hundreds of the same part then the auto tool changer is a must have but if you are mainly making 1 and 2offs then the manual quick change tool post is a better option if you are making 10 to 20 offs then personally I think the manual tool post is still the better solution
I bought into the QCTP with the splined tool post Swiss made originally. It allows for very accurate tool positioning and takes a few seconds to change tools I have 10 tool holders all pre set with tools that are shared between the two lathes all tools being stored in the tool table in Linux cnc
Very nicely put Paul