Love my custom 30oz! The only issue I'm not happy about, is the fact that the logo and the custom design are not straight/ square with the handle and lid. Once closed, both the stanley logo and my custom logo are about 1/4 past the handle. All our stanleys my wife and kids have, (5 in total), all line up straight once the lids are on. Might be a defect in the lid threads or possibly in the threads on the actual cup. But other than that, it is nice looking!
I got my first Stanley IceFlow tumbler about a year ago and I have used it every day since. It keeps my water as cold for at least 24 hours and the built in straw is so convenient. I purchased a monogrammed one for my fiance for his birthday because he kept mentioning how good water tasted in this tumbler. I take mine with me everywhere I go. It's definitely worth every penny.