Bests & Worsts Reviews from Amazon

This is a great Device and works on all the listed Keurig Coffee machines. However the instruction booklet was a little confusing and incorrect when it comes to how the grey adapter arm piece works on Plus Models versus other models. Basically if you find this isn't fitting on your Keurig coffee machine either remove the grey adapter arm or put it back on. Also if you have a regular k cup holder in your machine you need to remove that before using this adapter. Some holders on some model Keurig machines come out in two pieces other holders have one piece. If you have a two piece holder take both pieces out. That wasn't very clear in the booklets either.