I like that you can "label" the date by simply twisting the ring on the container, great feature! I wash mine in the dishwasher every time and have not had a problem. They're great for on the go because they twist shut rather than snapping shut, so they stay closed tightly and don't spill. The storage tray is also a nice plus as it keeps the containers from leaning sideways on the wire rack in the freezer.
The instructions say do not on wash on hot, sanitize, etc., do not wash power base or blade holder in dishwasher. The rest of the cups and spoons, etc. says they are dishwasher safe! I washed the 2-1-carry and go container for the 1st time on the top rack, normal cycle. When I pulled it out it had melted! I emailed company to get replacement. They respond with . . . We apologize . . . Please find below the Baby Bullet Cleaning Instructions as indicated in the User Guide enclosed a copy of the cleaning safeguards list . . . we are unable to provide warranty service. You can purchase a new kit. . . I don't want to buy the whole set again. I feel I washed it as it instructed. I cleaned the cups according to the 'cleaning safeguards.' Everything else washed fine! It was just the To-Go Tube that I had trouble. It says they are dishwasher safe of top rack, normal setting, except for the blade holders, and power base.