i think i'm in love with slip stitch crochet. i also love that this hat is made out of super bulky yarn, so it only took me a couple hours!!
it's for my niece for christmas, but i think i'll definitely be making one for myself.
as a pattern, i thought it was pretty easy to follow, but it had three major drawbacks.
one: there's an error in the pattern. round 15 instructs you to (slst 7, then slst2tog) 6 times, which assumes you have 54 stitches to work from (7 + 2 for decreasing). problem is, the hat is only 48 stitches. so, to fix this, don't do any decreases in round 15 but continue back loop slip stitching, then follow on from round 16 as directed.
two: it's really difficult to get gauge if you have a tendency to crochet tight, or short. if that's you, try to configure a way to up the size or add rows.
three: be familiar with slip stitch techniques, specifically front loop, back loop, and slip stitch decreases, because the pattern doesn't explain them.
i added the earflaps myself.
thanks for looking!