I expect and demand a level of, for want of a better term, UI crispness.

It is equally aggravating to err on either side: Windows 3.1 clunk to the left, Tahoe's operationally useless (indeed, operationally detrimental) visual fireworks to the right.

Apple needs to hit a sweet spot of crisp, but the priority must be fast, logical interaction that lets me operate at the speed of thought. With Tahoe, Apple tried to gild the lily.