OK this isn't an accusation, but when there are 4 rave reviews for an item that as soon as you use it, you see the drawbacks, you have to check out the reviewers. Each of those four reviewers had only ONE review and it was of course of this product. Here's a review by a woodworker who reviews items all the time, some good, some bad... and the average ones get little attention from me other than in circumstances like this.
First, the good parts. The red case is easy to find. I have not yet broken the case, and since I drop things a lot, that's good. The colored leads make it possible to make a visible line on almost anything... if you happen to be carrying the appropriate lead with you. It's easy to load and easy to advance the lead when needed.
Next, the problems. The biggest one is, when you drop the pencil, the lead shatters into multiple short strips. Since it takes a strip of at least an inch or more to clasp properly, it definitely shortens the usefulness of each lead if it's in three or more pieces. Also once the lead is short, it tends to skew in the holder, so it's sometimes hard to see where it's going to mark if you're, say, trying to mark to the 16th of an inch on a framing square. If you don't work within a 16th of an inch that's fine, then...but it's a bit disconcerting to find you've marked a tight fit wrong and you have to redo it because it's too short or too long to fit.
Another small thing, it doesn't stay in my T-shirt pocket very well. It's too long for the clip to grab very much pocket and oops, you bend over and there's the lead shattered yet again.
Oh, and one more tiny problem is that the point is too blunt to be able to see the lead if you're marking something right in front of you. So you turn the pencil sideways so you can see the lead, but now you've got it on the flat side marking and you have to tilt it to get the corner of the lead (unless you sharpened it, which was the whole idea of getting this pencil in the first place, because you're not supposed to have to sharpen it.
I'll keep working with it because I bought 4 sets of refills and if I find some workarounds or ways to make it work better I'll update. I find dropping it into my jeans pocket is a good idea because it's safer there.