How to update the finish on a table

I have a table I use for my main computing area and it is starting to develop some texture and off color areas. The table in an ikea so I assume that it is engineered board with veneer.

I want to refresh the table to make it last longer and to look more aesthetic. I am debating of sanding it gently to remove the imperfections and then applying a wipe on poly (maybe a few coats).

Is this a good idea? How would you proceed?