I am SO happy with this purchase. I've been eyeing popflex bottles for a while because 1) I wanted a 64 oz bottle to make it easier for me to track drinking a gallon a day and 2) they look really pretty and high quality. I was ready to buy either diamond sky or lavender marble, but when the stardust collection came out, I became no longer torn on what to choose. I ended up going for iridescent for the goal of longevity (my thought process is that the inevitable scratches I will get on a bottle that I use everyday will be hidden the best because a white bottle provides close to no contrast). I am so happy with my decision. This bottle is beautiful. Feels great. The straw is sturdy (a lot smoother than a hydrof). It's safe to say that I'll be using this forever now. It's easy to lug around with me despite its huge size.