Although there aren't many reviews for stainless steel weights, the Ohaus brand weights are rated consistently by customers as being highly accurate. On Amazon.com, people who have purchased the weights claim that they are accurate to 0.1 grams.
Although generally expensive, the Ohaus weight brand has been consistently well-reviewed by customers. One customer claimed that by using a very well calibrated scale, he was able to determine the weight of an Ohaus was accurate to nearly 0.02 grams, which is considerably better than some weights that sell for the same price on Amazon.com.
There has, however, been one feature of the weights that has been reviewed negatively: the product description. Ohaus typically sells its weights by the weight of its counterbalance, also known as the "attachment weight." In one set, Ohaus offers attachment weights of 1,000 and 500 grams. What the attachment weight means is that, when put on the attached side of the scale, the scale evens out at 1,000 or 500 grams, depending on the weight used. Some people have claimed that they were misled, thinking the weights themselves would be 1,000 grams. The actual weight is 295 grams for the 1,000-gram attachment weight, and the actual weight is 147.5 grams for the 500-gram weight.
Marketing issues aside, the Ohaus brand weights have been consistently reviewed as being a quality weight.