IT'S ALL ABOUT THE FLEX AND FLOW ! I received my order on time well packed and in good condition. I am using three different hoses for my floor refinishing business. One is a cheap box store 2.5" that is really a 2" hose on the inside that has a corrugated interior surface that greatly reduces the air flow to a point that at 40 feet of hose the vacuum is almost useless and the hose is starting to collapse. That hose is going in the trash tomorrow. I also use a 50 foot long high quality 2 1/2" smooth bore hose that flows very well. The hose is huge and stiff and a pain to handle, so much so the I rarely use it. And now I have this hose ! With it's smooth bore it flows very well, and it is very flexible and easy to handle. I tried it on my shop vac just to see and I am impressed with how much better it flows. now it will pick up large debris and nails aggressively ! I will be purchasing 50 feet more of this hose to use on my big vac (dust extractor) simply because it soooo easy to handle and use and flows so well. I would highly recommend this hose, I wish I had it a long time ago.