This cup is a good design, but poorly manufactured. The base stem easily connects to the cup and is stable. However, the nesting feature is flawed. Ridges on the base, which the cup should click over, when nesting for storage, are too wide in diameter. This prevents the cup from snapping into place, when in storage mode, and prevents the 2 pieces from staying together. Biggest complaint- the cup transfers a strange odor and unplesant taste to liquids, even after multiple washings. I would not buy this product again or recommend it.
Rating:
[5 of 5 Stars!]