>Has anyone tried using this product. Does it make upgrading client databases an easy job? Are there any other products that do a better job?

My apps never leave home without it. :)

Answers to your Qs: Yes, Amazingly easy, Doubtful.

Stuff I did not have to develop when VFP came out just by buying and integrating SDT into my apps:

1. Indexing routine that accounts for all the new DBC features (PKs, FKs, persistent relations)

2. Table repair

3. Updating views, table structures, indexes [database validation]

4. Data dictionary [meta data]