Just bought this vitamix with personal size cup attachment a couple weeks ago. Very happy with this purchase. I see other reviewers having trouble with the cup attachment and leaking. I've used this cup attachment every day for two weeks now, and not a single leak. Easy to line up threads for screwing tight. I'm thinking others might be filling it too full and/or maybe not screwing the blending attachment on exactly straight? I've also used the larger blender container to make veggie smoothies, with kale & celery. This Vitamix creates a perfectly smooth veggie smoothie with ZERO celery threads or chunks of kale ribs in it. The cups & lids that came with this bundle are EXCELLENT to carry & drink from. No spout lids hitting you in the nose while you're drinking. I previously had a Ninja blender, and the design of the cup made it so I had to wipe off the edges with the threads on them, before screwing on the drinking lid. If I didn't take that additional step, the smoothie from the edges would dribble down my chin and onto my shirt every time. Also, the Ninja cup drinking lid was very fussy to get screwed on just perfectly to be certain of no leaking when tipped up to drink. This Vitamix personal cup attachment is easily operated with no fussing or glitches....a far superior product!I see some other reviewers here complain about the noise of the Vitamix. My new Vitamix is less than half the noise of the old Ninja. When I was running the Ninja, my apple watch was always warning me that I was exposed to dangerous noise levels. My apple watch is completely happy with the noise level of the Vitamix. (more importantly, the blender no longer hurts my ears).I had a Vitamix 30 years ago. Used it CONSTANTLY for 20 years!! Smoothies, pestos, soups, chop nuts, etc etc. I gave that old Vitamix to my adult son because I moved to a smaller kitchen and at the time, decided the vitamix was too tall to fit under the kitchen cupboards, and not enough counter space to leave things out. I thought one of the smaller footprint, personal size blenders would work better for my new non-cooking, smaller home lifestyle. BTW.....my son is still using that 30 yr old Vitamix, and it's still going strong.Full circle for me. Back to veggie smoothies again, and HATED the way the Ninja left chunks of kale ribs and strings from the celery in my smoothie. Was actually kind of glad when it died & forced me into something better. Very glad to have a Vitamix on my countertop again & drinking truly SMOOTH smoothies. (also, the newer shorter pitcher slides right under the upper cupboards just great.)Lastly, I read other reviews saying this vitamix is harder to clean. What? It's dishwasher safe!And all of the surfaces are so smooth and hard, that they rinse off instantaneously with a hard stream of hot water.I'm so glad I had a Vitamix 30 years ago, and so ignored the negative reviews here, and ordered one anyway. I find the new vitamix to work just as well as the old one,. Happy that they now offer the smaller pitcher on top, and the cup attachments work seamlessly.Now......the longevity remains to be seen. Won't be able to talk about that for another 20 years or so. Before buying, I googled where they're made, and they're still made here in the USA at the same plant as 30 years ago. So keeping fingers crossed that this will be the last blender I ever have to buy. In the 10 years that my son has had the old Vitamix, and I've been using various brands of small personal blenders......I've had to replace the small ones every 2-3 years. The cost of replacing them is greater than the Vitamix that would have outlasted all of them. OH!, and BTW? I've also had a high end food processor die in that time frame, and this Vitamix will do all the same jobs as the food processor did. (except slicing)Also, I don't feel guilty about "throwing away" (where is "away," anyway?) so many junk appliances that don't last.