Good cups, but beware that metric labels are not correct
934206
Study. No sign of the handles coming off yet. Measurements are true, but the metric labels are wrong. The 1 cup measure, for example, holds 1 U.S. cup (8 fl oz, appx 237 mL), and not 250 mL as labeled.
2198663
Purchased this cup to scoop feed out of the food pail for my large breed pups. It is sturdy and the measurements are accurate based on the description. I deducted one star for two reasons:
1) The measurement lines are on the inside of the cup only. There are no measurements on the outside of the cup. It makes it slightly difficult to use if you need a partial cup.
2) The edge of the cup is rather sharp and not rounded for a comfort fit. It cuts into my hand a bit if I am scooping something heavy or bulky such as dog food.
Otherwise this is a great quality measuring cup.
2532020
This measuring beaker has outstanding thermal properties.
But the measuring increments on the british side are really poor.

Pro: I poured boiling water into this thing while it was cold, no problem. I moved the hot glass directly into the fridge, no problem. I put this beaker over open flame on my gas range, no problem. This is the way pyrex used to be, it's awesome.
Also, when compared to my Oxo measuring cup, the milliliter measurements appear to be consistent. Also they appear to agree with the measurements printed on product labels (eg., 355ml for a can of soda). The maximum measurements on both scales, 4 cups and 900ml, respectively, appear to be consistent with other measures.

Con: the increments on the standard scale (cups and ounces) are internally inconsistent. Even if you look at the picture up there, you can see that the distance between 2oz increments varies widely. I found that the 2 cup increment, 16oz., is off by an obvious margin. It was inconsistent with other measures.

If you want something that measures metric accurately and withstands temperature changes very well, this is a great beaker!
But if you want to be able to measure accurately in british standard units below 32oz., then you have to look elsewhere.

*edit added months later: After about a half dozen runs through the dishwasher, the markings are almost gone.  They held up ok to hand-washing, but the dishwasher eats the ink away. Don't expect a lifetime of measuring accuracy.
2552900
The cup was a pretty good quality , but it was not the correct wording. I Kept it anyways and re purposed it.
2190498
I like that this has a good pouring spout... fairly non-drip, and the handle is quite comfortable. What I didn't notice when I bought it, is that it has no 1/3 cup measurement marks. I can't say that I've ever had a measuring cup that didn't have them. I cook and bake a lot, and many recipes call for 1 1/3 cups, etc.., I will use this for some things until I get these: http://smile.amazon.com/gp/product/B0000CCY1Y/ref=ox_sc_sfl_title_3?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
4746888
I bought these measuring cups because they were described as the most accurate measuring cups on the market. Great quality. The magnets that hold them together aren't terribly strong, they could be stronger.
3932275
I had a recipe for 7/8 of a cup, and my cups were in quarter increments. I'm not a mathematician, but I guess I could have just eyeballed it. However, I like these cups a lot. They are sturdy, and I like having the measurements on the sides.
3029369
The description on Amazon is completely contradictory. It says each disc makes an 11 oz. cup, later it says each serving makes a 12 oz. cup. The package, when you get it, says each disc will make a 7 oz. serving. After all this misinformation, the package is correct, it is only 7 oz. This is not enough to fill a standard size 10 oz. mug. Although the 7 oz serving is good except for the problems below.
The Bosch Tassimo T47, I have, has problems recognizing Tim Horton T Discs, sometimes. You have to repeatedly open and close the lid to get the cup icon to stay yellow instead of immediately moving to red. The last problem is there always seems to be very fine grounds in the coffee. You have to take a spoon and skim the grounds off the top. I think there is a quality control problem and poor supervision in the manufacturing and marketing of this product.
4209160
Beware of product dimensions. Pictures used in this listing show the cups to be wider than the printed measurements. Actual product that I received is more narrow. This does not look like a result of bad batch as others have also pointed out this issue. It looks like sellers deliberately edited and used pictures that looked better to sell this product. Not worth the price. Sellers like this is going to ruin amazon. If you want to see how the cups look like in actual, scroll through other comments to see them.
4402712
The listing specified 48 cups - I was pretty certain it was not correct, but would like it if it was now corrected. Otherwise we like the cups and use them constantly.
1085690
Great measuring cups - I have 3 different sets.  The red set is showing some signs of wear very quickly. The labels for what size cup are wearing off after a month of use (They have been top rack dishwasher or hand washed)
4042870
I purchased this for a chemistry teacher.  The cup is a good quality; however, the chemical structure for caffeine is incorrect.  If the N3 was corrected, it would be okay.  If you are giving to a chemistry geek, as I was, it just won't do.
2444752
Great cups! I am enjoying them.
Edit: 04/29/2016
They are still nice cups...but the silver cover on the (black, plastic) lid became un-attached, so I will have to re-glue in order to be able to loosen/tighten the lid without lifting that up, turning, then putting back down. Also made it unsecure to hold along edge of lid.
651900
The reason I purchased this product is because I'm tired of measuring cups where the painted on measurements wash away.  That won't be a problem with these cups.
3331585
Adjustable outer cup is secure and doesn't slip easily. This has been great for measuring brown sugar and peanut butter.

ETA: I've downgraded my original rating. After less than a year of moderate use and washing by hand, nearly all of the measurements have worn off. The seal is still secure enough to hold liquids, but without markings for measurements it's a moot point.
169846
These measuring cups will undoubtedly outlast me. They are heavy and do not have riveted handles like those you see in most discount stores. I was drawn to these after I had two sets of cups fail on me in less than a year. The cups broke away at the rivets while I was scooping flour or sugar. Very annoying. That will definitely not happen with these. But they are so heavy that they are cumbersome. And I do not particularly care for the rounded bowl with a lip. This makes them almost too wide and hard to manuver in and out of bags and jars where I store my dry goods. On the positive side, they seem very accurate and are certainly sturdy. I wonder how the markings will wear over time. Overall, I think they are costly considering the design flaw, but it has proven very difficult to find measuring cups that are both durable and designed to my liking. For now it's the best I've found.
4788262
These nesting stainless steel measuring cups are great. They are engraved so the measurement identifier would disappear over time, which is amazing. Being stainless steel they clean up very well and easily. My only reason for giving them 4 stars- the cups are also marked to show a smaller size within the size being used- which is brilliant! But- I need 1/8c. A lot. Much more than I need 1/6c- which I have actually never needed. So in appearance, ease of use, ease to clean, appearance, and overall appeal and satisfaction- 5 stars. But my needing to either purchase a different measuring cup and hoping that it may nest with this collection, or pulling out a Pyrex glass to measure frustrates me.