Implementers can use the multiple reviews to find products appropriate for chosen tasks. Reviews are added several times through the week. The only thing I would suggest is when searching for reviews of a particular product, search for the product name rather than the vendor name. Product names tend to be constant even when vendor names change. What Reviews Can Do In general, product reviews are very useful in narrowing the field of possible products.
Reviews can also point out product strengths and weaknesses.
While these are often not significant to the big picture, some of these strengths and weaknesses may directly bear upon your proposed use for the product. For instance, if you see a great hard drive, but it's SCSI only, and you only want EIDE drives, such information helps you eliminate that particular drive from consideration. Reviews can flag an excellent product. If reviewers from multiple sources uniformly extol the virtues of a particular product, that product generally is one of the leaders in its field. Reviews can, but rarely do, flag a poor product.