I bought the smaller Kannastor grinder about a year ago and without the window and absolutely love it. Love the grind you get and how well it works. I have always wanted a window grinder and saw that you started carrying Kannastor. I was excited to know you also like their grinder. My new grinder is a bit larger the my old one and am absolutely in love with it. Thank you for carrying my favorite grinder. Looking forward to my next 420 science purchase.