BROKE IN THE FIRST HOUR OF USE!
587578
I was going on a day hike (no climbing or jumping -- just walking) with my Canon 7D with a 18-135 kit lens and a canon EX600 flash attached.  I thought that it would be a good day to test my new rapid strap...I was wrong.

WITHIN AN HOUR of the beginning of my hike, the pin that keeps the carabiner attached to the sling slipped out of the socket, sending my camera, with all of its attachments, rolling down the side of a very steep hill.

Needless to say, this is getting returned and I'm having to deal with getting my equipment repaired.

If you do anything more strenuous than standing or sitting, THIS PRODUCT CAN'T BE TRUSTED!
1817738
broke within hours and there is a connecting cord so you have to run after it or it pulls on the cord....not worth it...
2629926
Broke the very first day I used it while traveling. Very disappointing.
1983701
I just used this vacuum for this first time, and it broke. About a minute into using it for the first time (which was going nicely), a string got stuck as I was vacuuming that melted part of the vacuum and broke the belt. I was certain that buying such a highly rated vacuum on amazon was a no-brainer, but it literally broke in the first minute of me using it. Very disappointed in the quality of product.
1568533
We were extremely disappointed with this thing as it completely shattered after 10 minutes of use.  Hoping this is just a fluke.  Sending for a replacement as my son was ecstatic with it for the few minutes it lasted.  Hoping we'll do better with the second one!
468990
This item broke within the first hour I used it.  The plastic holding the steel prongs broke like a cheap toy.  I do not recommend this item.
1635310
Purchased for my boyfriend to hold his keys. Was broken within the first hour.
4025402
Broke within the first 1/2 hour of use. The plastic performance tip split in half.
2771507
One of the pieces broke off within the first 20 minutes that he played with it.  I superglued it, then the propellers came out, apparently they aren't attached very well.  I just superglued the light piece from the side back on.  He's had the toy a total of 3 hours!  Disappointed at the poor quality.  He worked hard earning stars for this by doing his chores, and he is just so sad about his broken helicopter!  I may need to take this back!!!!
2238617
I received these headphones in the mail Tuesday and was excited to use them for the first time on Thursday. Unfortunately, I was only able to get one use out of them.

I was using the headphones while lifting weights when the cord snagged and, in a split second, the wire completely snapped.

Now my headphones are useless. They should be able to withstand such a tiny amount of pressure! These are quite possibly the most poorly made headphones I've had the displeasure of using. I'm better off with a ten dollar pair.
3679045
Very poor quality. Broke within the first hour. No return policy either. I have contacted customer service for a refund but am unsure whether I will actually receive one.
173366
the toy broke within first hour of play (normal play, no rough stuff), so we returned it.  The fact that's it's not a wind-up, but is powered by batteries, and the fact that the records do not turn when played compromise the wave of nostalgia you might expect from the toy.
725090
Stopped working the first night we used it. Very disappointed!
3928839
I was so excited for this product! The bottom piece that attaches it to the machine broke within minutes of pulling it out of the box. Good thing my husband had some super strong bonding glue to fix it.

23 Aug Update: just tried to use the product for the first time after fixing it...the adhesive didn't work, broke under a little pressure.   I'll give it one more go and try a new one. Hopefully I have better luck.
4517863
The loops for the across the shoulder strap broke within hours of my first use.  It was nit overloaded either.  I had my laptop, power cord and mouse in the bag and that is it.  Very disappointing.
3644665
Very beautiful - But definitely for show only!  It busted within the first half hour of use.  Left me stranded. :(
2843144
Thought it was a pretty good and smooth rope but it broke within 10 minutes of first use. Shortened the rope for my height and when tightening the screws one stripped and then fell off as I tried it I use it. I could fix it but i shouldn't have to fix a brand new product. I'm going to try again to fix it. Disappointed.