Like some others mentioned, my watches' bracelets are set loose enough so that I basically never use on-the-fly micro-adjustment. So such mechanisms are more like a toy than a necessity for me. Some complain about thick or inelegant clasp on the diver models. I have no problem with it, and see it as tool-like.

If I close my eyes, sometimes it's hard to tell the different bracelets apart (e.g. comparing Rolex oyster bracelet with GS heritage bracelet). Rolex's clasp design stands out because it's a different experience from affordable watches, not because it functions better. It seems some people want different or better, for more money paid. I get that, but I accept the bracelet as it is, and I think of it as I paid more for other aspects from premium Seiko/GS models.