1) Most definitely the ID won't be interviewing your kids. They will ask for your requirements instead. 2) They will help you to choose and suggest which items matches with your concept or theme. 3) Some of the IDs will help you on making the right choices but i doubt most of them will do so. You need to make a decision what type of concept you like that matches your lifestyles and also your personality. Most IDs will definitely proposed to you a modern concept as its easy & popular among most people.