When one size fits none
When you let a 3-year-old make a sandwich, they include everything they like. Peanut butter, jelly, salami, Cheerios. Those are all great ideas! Get some chocolate, honey and maple syrup in there. Daddy puts salt on food - let's do that too. Lots.
With the first bite, reality hits - and they hand you the sandwich with a sour face.
Don't combine lots of good ideas into one bad idea.
If you've found the right customer and the right product, your product won't have lots of features, it will just have the right ones.