Gartner is a major power in the IT advisory firm space. There is constant contention between Gartner and the vendors who think, right or wrong, that the company charges them way too much—sometimes upwards of $100 million—for positive reviews. IT buyers often complain that Gartner, like any large company serving lots of people, doesn't get down to their unique needs and often sends them analysts who are inexperienced. Furthermore, there has always been a concern with every vendor-funded firm in the segment that the difference between reviews and marketing collateral is negligible. With Gartner, the issue generally isn't corruption but, rather, timeliness and relevance.