I have made about 12 washcloths, all with cotton and all with bamboo needles and except for knitting the first row, they are fine. It might be that I knit loosely but for me, the bamboos are my favorites. And unfortunately not knit much for myself (1) but the one that I use is great for cleaning items that take a little extra muscle but not scratching.
Cool. I don’t have any bamboo needles, I mostly just use the Options these days.