I ordered these a few days ago on 2/8, they were delivered early this morning (6:30am) on 2/11. Firstly I am very impressed with the shipping of these! The product box is over 110lbs and there was NO physical damage to the exterior or interior, I have no idea how they handled this dumbbell box so carefully. I fully expected tons of damage inside and out, so 5 stars there. Now I haven't put these through their paces just yet, but wanted to give an initial impression after playing around with weight selection and doing a few quick and light exercises to see how they feel. Bear in mind this is my first ever set of adjustable dumbbells, and if you are reading this in this future, we are still in the middle of the covid pandemic and finding any weights at all is difficult, much less a set like these and at MSRP no less ($329). 1) Weight Selection - First impressions here is slightly mixed. The selection itself is obvious enough though, the outside pin you pull up and drag and drop to wherever you want your heavy weight (10lbs, 20lbs, 30lbs, etc). The inside pin you pull up and drag to the front for 5lbs extra, back for 2.5 lbs, or middle for no extra. So getting from 10lbs, 12.5lbs and 15lbs is very obvious and straight forward. My concern is the selector pin handle is just a plastic piece, so I'm interested to see how this holds up over time. But the pin itself is metal so hopefully that lasts. Also when selecting your base heavy weight, the pin tends to get stuck sometimes when moving back and forth. Not a huge deal, but again I haven't gone through a full workout to see if this becomes annoying or not. 2) Dumbbell Feel - As stated this is my first set of adjustable dumbbells. I've used plenty of standard hex dumbbells in the past and have always enjoyed lifting those. These definitely feel a bit different when lifting versus standard hex dumbbells. There is a slight wiggle to the plates and some click-clacking sounds when lifting. Very slight, but noticeable. The metal handles are nice though, they have a nice knurling and good grip, so solid marks there. So far I think they seem perfectly fine though, especially considering these 2 dumbbells are replacing like 10+ pairs of normal ones. 3) Durability - Only time will tell here. I am concerned that there is only a 90day mfg warranty... I never like seeing that for any product ever. If you don't want to guarantee your product for even 1 year, that's a straight red flag. Especially with something like this, that costs $$$, I would hope to get many years of use out of them. I will certainly treat these with kids gloves, make sure I am gentle with the adjustor pins, definitely not dropping these or tossing them around, not going to use them for pushups, etc. I should mention that the plates themselves are a heavy plastic, not metal or rubber, so I don't think they would survive much impact. I'll come back and update this review after 30 days. I felt it was important to give an early impressions of these. When I bought these dumbbells, they literally sold out just later that day, and I see 3rd party resellers (SCALPERS) selling these things for $500+... DO NOT BUY THOSE!!! I paid $329 shipped, so PLEASE do not buy from any of these scalpers, they bought the product, so maybe they can use them as intended instead of taking advantage of this screwed up global situation were all in. Those a-holes are ruining many peoples hobbies and interests by doing that crap, so do not support them. Lastly, I have no idea if this is a genuine NordicTrack product. I've seen people on this page say they are brand new, and others say they are old and discontinued. The packaging doesn't really indicate much. There is NordicTrack branding on the shipping box and on stickers for the dumbbells. They are manufactured by the company that makes NordicTrack products though, so at least that's something. Regardless, I think the value for money is there if you can buy them at MSRP. EDIT (39 days later): After having used these dumbbells about 4-5 days a week since I got them, I can definitely say this was a solid purchase. Super convenient, weight selection is very nice and quick, no major gripes at all. However, as I stated some concerns in durability above... that is still very much a concern. There's been a couple of times where the inner 5lb weight would not attach to the pin, had to pull the dumbbell out and reset it to get it working properly. And I would still caution against using these for exercises like man makers or anything similar. I almost want to try it, but have the feeling these things would be toast in a couple of months if I did that. So these are not perfect for all workouts, but for general purpose lifting I definitely recommend. P.S. DO NOT BUY FROM SCALPERS!!!