The ability to easily compare large data sets in a single view. The user interface is very intuitive (and the product is very well marketed). The ability to compare on all fields and easily highlight the differences is a huge time saver. I prefer to use the product more than the SQL Server itself. I have found the product to be very intuitive and easy to use. I highly recommend this product. I have been using xSQL for quite some time and have found it to be an incredible product. The benefits are that the data is in a single view allowing for a very fast comparison. I can see quickly the differences between the data sets and make a quick decision as to if I need to do a full sync. I can also quickly make changes to the data sets to sync up changes.