Table style in Indesign is a good idea but it's really not efficient. It never works the way it should, you spend nearly more time to fix overriding and cell size than making a new table from scratch. You can buy Wooding Smart Style who works very well but it's expensive to pay one feature compared to the price of Indesign itself.
The table styles are very efficient. With a few clicks you can lay-out a whole table. Even paragraph styles can be connect to cell-styles.
But the are a few things to start with
1. select whole table and set rowheight in pallet table to "at least" and "3 points" (or the number the error message give to you). So you don't have overriding text anymore.
2. make a table style and a cell style that brings the whole table back to a body text like look.
3. Then make cell styles to lay-out parts of the table (like the heading and last row)
The trick is to start the right way, define your styles good and nothing can go wrong.
Europe, Middle East and Africa