making it close to useless.
359351
Mirror arrived in a package marked "refurbished", and the mirror surface was severely scratched, making it close to useless.
2318712
Lots of little things make this not work as well as you might hope, and ultimately make it nothing more than a gimmick.

1: The holes are too few to get a good circulation around the tea leaves
2: The too-few holes are also too large and let lots of leaf bits through, more than my mesh filter equivalent
3: The too-few, too-large holes get stems and leaves stuck in them and are difficult to clean, a problem made even worse by:
4: The edges of all the plastic bits are sharp right angles, making cleaning the inside of the filter literally painful.
5: The little bit by the top of the filter where the black(or colored) plastic meets the clear plastic gets a tea leaf stuck in it every single time I make tea.
6: The "control" mechanism, by nature of the flimsy plastic bits, constantly misses a large number of tea leaves that just float around anyway. Defeating the purpose of the whole device, or at least minimizing the benefits
7: The tea leaves that do get cordoned off by the "control" mechanism still sit in hot water unless you pull the whole filter mechanism out, meaning your next infusion has all the bitterness you might have saved from your first infusion.

I'm replacing it with another regular teapot with a mesh strainer. Too much gimmick and hassle for not much payoff.
2339542
It is so small as to be almost useless for anyone with less than perfect vision. The entire bubble level is about 3/8ths of an inch across and the inner bubble as well as the level ring are much smaller still.
3655285
This product is less than useless. The vent plug falls off and the vent makes a perfect little squirt gun of gasoline all  over whatever it's pointed towards. If you're looking for a solution to these fancy new gas cans, this is not it, sorry. Keep looking.
2636908
That's it.  If you're just wanting a headphone extender, this is your item.  Other than that, it's so completely useless.
811888
Rather useless in that it is / may be of limited application - that is, they're large.
3299115
Works on minor problems but mine is too far gone for it to do any good.
2639129
Some of the pieces for this unit do not fit,rendering this basically useless.
75736
The clip is too shallow to accommodate any case on your phone, making this thing useless.
2210265
Never really made a difference and seemed to be more in the way than useful.
1417368
Save up and get yourself a desk lamp with a magnifier. Don't waste your pennies on this crap.
This thing is less adjustable than it looks. The alligator clamps are useless, as in, won't even hold their own weight. The little magnifiers are set at an angle that renders them useless. The LED light looks like a great idea unless you live in the US, it comes with a handy UK 220V plug. Of course you could just use AA batteries or buy an adapter. This thing almost works as a paperweight. No joke, the weight of the main magnifying glass can tip the device over if not positioned well. A magnifying glass is a magnifying glass, I can't call this thing completely useless, I'm just saying don't bother with this one.
709543
The issues with the "Survival Tool" are already well documented here in at least one other review. I will sum it up with this... It is flimsily made, the belt clip is ready come off out of the packaging, the knife is useless (too small, dull, uncomfortable to hold), the whistle needs to be blown at just the right angle to work (so good luck in an actual emergency), the light is bleh, etc.

The flint steel is nice... once you get it to flip out that is.
3502725
Cheap and useless. Don't buy! Doesn't work how you think it would. Limited in the timings it can provide. Someone should design a better alternative.
1635075
I had my eye on this tool for a few weeks before deciding to buy it for use at work.  On paper this is a great idea and a useful thing to have on your key ring.  However after just a few hours of use reality set it.

- The tool has a slight curve to it.  This means that no matter how you fit it in your pocket or with your other keys there will always be one sharp piece such as a screwdriver point to dig into your leg or catch your hand
- The latch on the knife is flimsy at best.  I managed to have it open twice just by walking around with it on my key ring.  When the device is opened on purpose the liner lock is so weak even a small force causes the liner lock to fail.  Considering the tool uses x-acto blades the latch needs to be very secure since its so easy to get cut with a razor blade.
- The construction of the tool also leaves something to be desired.  The coating wore off quickly just with normal pocket wear and screw holding the blade on is so weak that while trying to score cardboard it sheared off.
1214210
How useless is this?  Worked ok until I had to replace the batteries.  Now it can't be turned off.  You push the button and it just "weighs" your pressure.  Removed the batteries and toss it in the trash.  Save your money.  Based on this I wouldn't touch another Ozeri product.  Replacing it with a top-rated OXO (recommended by Cooks Illustrated)
2103686
The cover that is supposedly made for this size does not fit, making it effectively useless.  Buy something else.
1167719
I bought it for a mid-sized dog and it's one of the most poorly designed items I've ever seen....and what is so sad is that just a FEW minor changes would make it work.  The "flip top" needs a screw base -- it just sits on the "tank" and falls off at a jostle, pouring water all over everything.  The bracket is flimsy...a few centimeters on either side would hold the bottle in place much more securely; the tank falls out if I bump the kennel from the outside, much less when my dog actually tries to drink from it.  And while the bottom portion DOES screw on, it's barely in place -- a half turn and water leaks all over.  I can't imagine any dog that isn't very young or very tiny (and this holds a fair amount of water) who could possibly be dainty enough to use this without major spillage.  Don't waste your money.  The clamp holding the tank to the cage works....because when I come home, it's the ONLY thing still in place.