This is absolutely the best tumbler ever. Cold drinks and ice stay cold for 24 hours and coffee stays hot for hours!
I dropped mine when I first got it and broke the lid. I ordered a new one but received a 16 oz lid instead of a 20 oz lid. Although Katie from Customer Support (who responded immediately), tried to help me, without a picture of the broken lid (which I had thrown out), they couldn't guarantee the right lid size as they had several manufacturers they used.
For the life of me, I couldn't figure out why a replacement 20 oz lid, for their tumbler, wasn't a sure thing. Katie refunded my money. She even offered to send another tumbler with a lid, which I declined., but was a very nice offer. I just went out and bought a replacement 20 oz lid for another brand and it fits just fine.
Overall, I will definitely buy from them again as their tumblers are great!