Poor quality, convenient container -- UPDATED 10/2012
**Original 12/2010**<br />This may be a tough rating (1-star), but I think that the quality of this product can be found in the dollar store.  If it were $5 or under, I'd improve it's rating.  (And if it were $1, I'd give it 5-stars.)  As others have said, the threading is not high quality and the plastic is thin.  It's definitely not worth $10.  I was sent the all-clear variety instead of the colors, which I would have preferred.  It would have been nice to be able to specify your preference!<br /><br />There are pros to this product, though, and I'm not going to return it.  It is definitely useful and convenient.  It fits 8 vitamins (including big ones like my fish oil and calcium), and has room for more!  You can probably fit two of those soft chewables in addition to fish oil, calcium, multi, and others.  I probably could have gone a size smaller, but this will be great when I'm traveling and can double up on my days.<br /><br />**UPDATE 10/2012**<br />I just improved my rating a little to 2-stars (If I could do 2.5, I would).  I still don't think this product is worth more than $5.<br /><br />However, I've been using it for a couple years now, and it has held up.  I've dropped it on a ceramic tile floor, and while the container popped open and all of my vitamins spilled over the floor and under the fridge (ugh!), there were only cracks on the containers and chips off of the screw-top threading.  The container now looks like it has a stained glass look since there are cracks ALL over it.  So why would I improve the rating after this?  Well, the containers still screw together and they didn't actually shatter.  I suspect they will break, though, after another tumble or two, but I was pleasantly surprised!  I should also add that the containers have become disconnected on other occasions... in my suitcase.  Luckily at those times, they were contained.  But it's still a less than ideal happening.  The threads aren't high quality.  You need to be extra careful that you have all of the threads alined and twist the container tightly -- but not too tightly (or it will crack).  I think it might be an art.<br /><br />One additional piece of advice... the containers are NOT WATERPROOF.  I took it camping and threw it in the cooler on the drive up (thinking back, I don't know why did that!) and let's just say that it was rather disgusting cleaning out the vitamins.  I will never do that again.<br /><br />All of this said, I'm looking for another manufacturer of the stackable containers.  I really like the convenience they offer.  I can fill up the entire container for a week, but only take one with me daily instead of the entire stack.  That, to me, is awesome.  If I don't find a higher quality option or if the container breaks before I can find an alternative, I *might* buy another one.  But I'm a little stubborn and will only do that if I absolutely have to!  (And that is purely for the convenience [and size] it provides.)
Rating: 2 stars