The micro-nubs looked almost too gentle when I first opened it, but the sensation builds in a way I didn't expect. Cleaning takes a minute since stuff gets trapped between the nubs, but that's a small trade-off for how good it feels.
The tiny micro-nubs along the inner walls surprised me with how much they actually do — way more sensation than I expected for something this small. Cleaning takes a bit of effort since stuff gets caught in the texture, but honestly that's a small tradeoff for how good it feels.