I like that it has some nice features, such as being able to format currency values in different ways (such as showing commas instead of decimal points). It also allows you do add custom functions which can be useful if there isn't an existing function available or its not what your looking for exactly. The documentation could use work but i believe they're working towards improving this with their new website design/release! There are many other number libraries out there so make sure yours meets all requirements before choosing one over another. We needed something simple yet powerful enought handle large amounts of data without taking up too much space at once time while still allowing us easy access from our front-end applications using AngularJS.