Bests & Worsts Reviews from Amazon

UPDATE:SAFETY HAZARD First time i used this, I placed a room temperature liquid and 3 cubs of ice. 1 minute into drinking it thermal cracked. I almost swallowed a shard. THIS IS NOT SAFE FOR USE. I'm going to get this the following review. This is a very clever gift however I wonder if it would be safe to actually use with a beverage above 150 degrees Fahrenheit. The glass is extremely thin and leads me to believe that it is very fragile and I have concerns about it breaking. Furthermore the handle is only able to get about two to three fingers in and the ml is not accurate. I'm seriously debating on returning this as I find this to be a safety issue. Sincerely a real life chemist.