The only real con I noticed was that it is not suitable for certain types of tables — including glass, those with leaves and single pedestal tables. (healthchecksystems.com)
This is very useful when you have more than one type of table at home, and you only want to use one high chair. (babygearspecialist.com)
A shake table is a special type of table that engineers use to simulate an earthquake on model buildings. (sciencebuddies.org)