The layout is bad. The design of the kitchen is what keeps everything flowing. If the layout is confusing, complicated, or just useless, doing anything other than grabbing a plate and utensils for your takeout will be frustrating. You want to feel comfortable when moving around your kitchen.
The storage is nonexistent. A cluttered kitchen is a frustrating kitchen. If you don’t have enough storage space, things are crammed into whatever cabinet it can fit in, or it’s stuck on the countertops.