My grandmother had one of those wringer washing machines. Like said, they lasted forever but were dangerous. She had a damaged finger from getting it caught in the rollers and yes, they were rough on the buttons too.

Getting back to the new style washers. My sister in law and some co-workers complained about their new machines not cleaning and having to wash the clothes several times. I think in all cases they had to go to a different detergent and now like the washers.

You may have to do some on-line reserch as to what others did or suggest. I doubt the sales staff where the machine was bought will be of much help.