My original eye colour is a very light blue with a dark blue rim around the outside. These lenses offer great enlargement for younger character cosplays, so if enlargement is what you want, then these are perfect!
As for coverage, if you don't have blue or brown eyes, you might be disappointed. These lenses have a wide rim in the center, which for blue-eyed people, they blend beautifully (a.k.a the design doesn't show much)! For dark-eyed people, your natural brown colour will look like an extension of your pupil. For green/hazel eyes, however, you will see your original colour in the center, and it will be decently large so be aware.
These lenses are extremely comfortable, though I did have a bit of trouble getting them in sometimes - they like to flip inside out because they are larger.
I love them, personally.