This software looks like it has a lot of promise. I've been using OmniGraffle to do my DB design so far, and this comes as a nice change, but it stills has a way to go.

The interface is very mouse driven, and there are some shortcuts that are severely lacking (for instance, pressing the delete key does not delete the object selected). The software sometimes makes odd decisions. For instance, when defining a relationship between tables, it automatically populates the child table with every column from the parent table as a foreign key, instead of allowing you to choose just one field.

Also, the layouts are a little messy. When creating a join table for a many to many relationship manually, both relationship lines joined onto the table's box at the exact same point.

All in all this is a good program with great potential. It's still clunky in the interface as well as the visual department (drop the multiple windows within one window theme! Use tabs or have a separate window for each project!), but this will be one to watch. It's export to SQL is extremely nice, generates very clean code and does it quickly.

$99 is steep for a product like this as well. I would guess that if it were placed around the $20-$30 mark, it would sell to hobbyists as well as pros.