Hi Umberto, I think I would call the Best/Bester, Imanshi stones more starter stones mainly because they cut slower and dish faster than most of their counter parts. There was the day when these were the prime stones to have but there was little out there to chose from. I'm somewhat prejudiced against soakers now too after using a lot of splash-n-go-stones. I like the smoother feel of most newer brands. The Best/Bester, Imanshi stones and also the bamboo stones I've tried are just too gritty feeling to me.
And we know this is all just personal opinion and experience, I'm not saying I'm right about all of this or this is what's best for everyone.
Just trying to share some experience to help someone else get started as others did for me.