The join rules database is a gem. A 'SmartServer' can run in batch with error handling, jobs notification, etc. Has a special cache to decide if data needs requerying or not. 1995 Other Comments Had to toss up whether this was also included in the developer section as well. Seems to be suitable for both end-lusers and developers.
Features See engine and developer tools reviews.
The report writer is a gem. Good choice of formatting wizards. The ability to print reports as of last query is useful if you only want to hit the database once a week and print out reports a number of times, perhaps changing various paragraphs above or below the data table, but then it may lead to confusion as to whether the data is current or not. It is also a cheap option for read-only users who do not need Access, especially if developers are hard to come by. Just make sure that all integrity rules live on the server.