I'm using a spanish WM at present, but can't see a vast difference between that and its foreign counterparts. I always use fabric conditioner and opt for "aclarado intensivo" which is like an "intensive rinse" at the end of each programme. I tend to use a "prelavado" or prewash when washing towels and using stain removes as well as ordinary detergent, and would always recommend a liquid detergent in place of powder.
Also, instead of using boil washes, I tend to use sterilizing tablets, which I place straight into the drum.