Actually it's quite impressive. I managed to convert an Oracle DB schema to a Postgres one, with "no errors", at least that the tool reported.
I wasn't able to connect to an SQLServer DB, but it's probably because I couldn't figure out how to configure the connect string since it's using integrated security (i.e. Windows accounts and password).
Graph functionality is surprisingly good too.
Would it be possible for your tool to create the DDL targeted at the new DB instead of performing the creation? This would allow users / admins to check the validity and learn the SQL dialects of the various target DBs.
Thanks for developing this. I'll keep playing with it to see if it could support my work.