Defective of bad design?
596920
It worked once and never has worked right again. The taser doesn't work abc the flashlight turns on and off after a full charge ... faulty wiring?? No contact info for return or assistance.
1893472
The product works okay, but its tip is poorly engineered. Mine worked only twice, and then stopped charging altogether. Investigating, its tip has a badly designed contact mechanism between the metal tip and the inner wiring. This may be fixed by twisting the tip off and soldering a short wire to properly establish the contact (picture attached). It's a shame it has this defect, as its form factor is great, and it doesn't heat up too much when charging.
2806473
Mine was defective. Looked like it would have been nice, otherwise. I would have liked to try a replacement instead of a refund, but I had bought it on sale.
4332818
I returned mine because the snap mechanism on the back would not work. It simply would not attach, so I returned it. This may be a wonderful case for most, but the one I received was defective.
Amazon's return policy is great.
2 - stars since it was faulty...I suspect I would have given it 4 starts or better had it been functioning.
353317
Just not a good design.  Here's what's wrong:

- Foremost problem with the item I bought... it won't charge my phone.  The little blue light comes on showing that the charger itself has power, but it doesn't transmit power to the USB ports.

- Most cigarette lighters / power supplies are near the stereo and other central controls, and generally placed low.  This means your mounted phone or mp3 player will certainly obscure these controls, and it will also not be in a convenient field of view while driving.  Anytime you have to take your eyes off the road and look down, it invites trouble.

- Unless your car rides like a dream, your phone will be bouncing all over the place any time you hit a bump.  I don't want to subject my electronics to that much vibration.

Even if the charger had worked, I probably would have returned this item anyway.  It's just not a good design ergonomically speaking.
2309408
Maybe a defective unit not sure, but the buttons doesn't fit properly. The hard frame is raised over the top level of the buttons, My big fingers have to  find its way into the buttons. The rubber buttons should raised over the frame not the other way around.
412185
Looks nice, but it doesn't sit properly, bottom wobbles.  So, it is going back.  Maybe mine was defective.  I found another one that hopefully will work better.
1783885
Not sure if mine was a defective unit, or it is a defective model. I think the latter. Nevertheless, it overheated during the first run to the point I was unable to touch the aluminum body of the toaster. It is extremely unsafe (not just from burning-my-skin perspective, which is bad enough by itself, but also from the fire safety perspective). I have returned mine the same day.

Other than that, it is good-looking and well made. Just do not turn it on and you are going to be OK.
2335945
Either a bad design or defective. There's no way to secure the center piece when using it as a cover over a hummingbird feeder.
3093690
The screwdriver/drill is not steady enough to drill a screw into something. The head of it wobbles and couldn't find any information on whether or not it's defective.
1900955
One of the two I bought is defective.
The design is lacking. Is promising, but not greatly functional.
1365220
i had bought one from you earlier (i think in 2014) - worked fine. I spent a lot of time trying to work this one - it is defective, i am going to return and get exchanged - if that also does not work - .........
2291906
The B-70 appears to have a design defect on the LCD screen - it refers to modes that do not exist, such as "Brewing."  They should release an updated model with an LCD screen that more accurately describes the three modes it is capable of: "Making noise," "Clogging up," and "Shutting off, ha ha!"

We've been through two B-70s in the last month (thanks to Costco's generous return policy), and are about to have to start in on our third.  I'm not willing to keep screwing over Costco with returns on defective products that are due to the manufacturer's poor design, so from here on out, Keurig is going to have to send me a new machine every time one of mine begins short-cupping and turning itself off (on average, after making about 10 cups of coffee).

At least my B-60 lasted about a year before the design defects rendered it inoperable.  The B-70 lasts a laughable two weeks!  If the design trends continue, I expect the B-80 that they'll eventually come up with will include great features like "breaks before you even get it out of the box!"
491802
Case would not lock onto holder, defective?  Would probably give it a higher rating if it would of locked in.
2211131
Current stock of these are defective. The swaged part of the tubing that fits over the Shurhold brush isn't deep enough to engage the locking button. I bought two of these and both were defective so I contacted Shurhold and they confirmed my experience.
4692939
It's has broken at the side....how it this happen?can you fix this problem?
652517
Flawed design. See my review for S4 case. Purchased this and S4 case at the same time. This one was for my son. He doesn't use it either for same issue.