[Q] XP and Estimation

Just finished reading "Extreme Programming Explained", second edition
by Kent Beck and wife.

XP talks of estimating early , based on skimpy user stories, and yet
talks of estimating accurately (page 4 of the book). But how do you
estimate? Just gut-feel? Is that the best XP has to offer about
estimatino? Is this a practical approash? I would like to hear from XP
practitioners, as to how do they actually do the estimation. Does
anybody really handle estimation and planning in exactly this way?

[Barring this point, otherwise, I found the book to be a nice
collection of sensible practices: small iterations, test-driven,
simple and incremental design, etc. are really good practices.]

....Ash
.