all have tested good. Pricey but decent quality control
596081
Ordered many of these in the past, all have tested good. Pricey but decent quality control.
1483383
So far so good, though I'm a bit wary of the quality of random USB 3 cables after a few that seem not to work from another manufacturer...
1531997
Had some problems with what appeared to be IR fliter sticking and locking up.

Returned.

Disappointed as research showed it to be quite good for a decent price.

Perhaps the quality control isn't good...or I was just unlucky.
1700295
Overpriced but reasonable quality. No other complaints.
4519718
Mostly decent. One of the inks went bad (started giving errors). Would buy again but hoping I don't keep getting duds.
2257800
Seems to be decent quality at a reasonable price.
2701537
They were ok. All of them had some sort of defect whether it's a scratch or ding or chip.
3666372
This is a case that came with a jammed zipper, which clearly was known when it was packaged.  It holds CD's adequately and has the full claimed capacity.  Mine did not smell as others have reported.  Beware of the poor quality control. It was worth the $6.99 I paid, if they ever send the rebate, which I have not yet received.  The zipper partially closes and that is enough for my purposes.
3141497
Unit seems to be fairly accurate except on all the corners of drywall where it consistently shows a false positive on drywall-all corners and edges. Have not really done extensive testing on the other modes yet. For the money, I suppose it's a decent value
2416919
OK but found one of the cables was assembled incorrectly making it unusable.  Of course this was the only one we had not yet used and return deadline had passed.  Best to check every thing once you get it even if visual inspection seems to give impression all is good.
3633421
Good reliable quality at a fair price.  Good compatibility.
3845396
These have been my favorite underwear for over a year now.

The Good: Comfortable. Keep you dry during exercise.

The Bad: Spotty quality control.

Verdict: Get these but consider picking up locally for a bit more money as quality seems more consistent.
4299313
Brought two... one perfect the other defective; typical quality control
4552355
Good so far.  Quality is good.  Never enough compartments for me but this has ok number.  Vertical compartmentalizing is an issue with these but I solved that with two 10L dry packs from Amazon that are perfect.  Padded strap is good, could use a pec snap closure.  Laptop fits good, I added padding on bottom though for accidental drops.

None of these are perfect, if it holds up as expected I'd purchase again.
503726
Quality is good. Not gopro but good.  Got my package and a few of my accessories were broken either in shipping or handling.  Over all its fair for the price. Cant post a pic for some reason but my extendable mono pod is broken among other parts.
527967
I ordered four of these and have tested them against a high quality humidity meter. They all displayed wildly different results until I snapped off the plastic housing and adjusted the position of the gauge against the cardboard backing. Since then all four have been accurate to within +/- 2%. One of the casings broke in the process, but was repaired with a bit of glue. If you're willing to put in a similar effort, you'll appreciate having battery-free meters at this price for your cupboards, suitcases or, as in my situation, guitar cases.
3709844
Update: I was contacted by the manufacturer's customer service, and was extended a full refund for the price of the protectors.  I believe this is a totally fair response, and given their willingness to stand behind the value of their product, would order this again.

It was a decent product outside of the aforementioned defect, so if another package was up to 100% without the glare issue, it would be a five star item.  So for the price, I'd suggest giving it a shot.

Original review:

One of the 2 pack's protectors has a clear polishing defect.  The defect is on the left hand side, running approximately 3/4ths of an inch at the top (next to the sensor cutout) to a quarter inch at the bottom of the screen.  While hand oils are going to show up on any screen protector, this defect holds a higher amount of oils which makes that section harder to clean, and also shows them in a clear pattern on the screen which is annoying while it is shut off.

The section is optically clear while installed, but seeing that pattern will kick in the OCD for just about anyone, making the need to wipe it off a constant.

Debating whether or not to return.