I have never been disappointed by an Apple product, not even with this one. It is very useful and I use it constantly. I have tried several cheap Android smartwatches that I now consider useless, as I switched to the expensive side with the Series 7 and saw its true capabilities! Apps, messages, calls!! I can even scroll through Instagram from the watch!
It performs everything instantly and never lags, I haven't encountered any bugs either. Although the Series 9 will be released soon, I believe that the Series 7 holds up very well and is the last watch that truly deserves its price and offers, as it is the same as the Series 8 but with the largest screen that can fit a keyboard (which doesn't support Greek, it immediately goes to voice command). It will receive updates for at least 4 more years!
It is a very useful tool for health measurements, fitness, sleep, etc. And I can say that everything works so smoothly and automatically sometimes that I simply trust it and it actually works! Of course, I should add that sometimes when I sit still for a while, it thinks I'm standing or walking and tells me "Well done."
It scratches easily, especially on the corners of the curved glass, and I have bumped it several times, thinking I could pass through easily. And in general, I'm afraid of its durability because if something breaks, it's gone...
The battery is a huge downside as it only lasts for 1 day. From the morning when you wake up until the evening when you return home and have to charge it again. I have never run out of battery, but sometimes I have that fear. On one hand, it has many functions and I often play with it, so it's logical, but still. It has fast charging and somewhat balances things out.
Generally, I don't like wearing things on my wrist, but sometimes I forget that I'm wearing it as it doesn't bother me much! One downside is that not all the types of straps that Apple sells are available in Greece (which shows how third world we are), and the more comfortable ones are only found from third-party sellers, which I see reviews saying they break quickly...