Well I bought a 5 gallon glass carboy before I read about so many people not liking them. Well I figured I could be careful and I'd be fine. After 2 uses I was sanitizing it for a third secondary fermentation. Then I saw a huge series of cracks on the neck!!! Glad I saw this before racking. I have cared for this thing about as well as you could have. I have never carried it by the neck, all the weight was supported from underneath and had a hand on the top just for added security while moving. I guess I'll either go with all buckets or try some better bottles. The better bottles seem ok as long as you don't roll the thing around the bottom edge to aerate the wort. So be safe guys, my experience could have been worse including bad cuts and 5 gallons of beer on my hardwood floor.