I guess this is the library which every newbie who's learning machine learning starts with and so am I. This is a very clean library where you get the basic logical code of many algorithms like regression, classification and clustering etc.As the algorithm is pre written so i only focus on traning the datas and output.It have very clean and smooth API. Review collected by and hosted on G2.com.

As told earlier it is for beginners and if you don't know python then it take you lots of time to understand each thing how it works.It doesn't support heavy models (if you try to make it then it starts to lag and doesn't give desire output).It also have limited customization for the algorithms also,like black boxes and fine grains control is not always easy. Review collected by and hosted on G2.com.