I have one laptop with Windows 7 and one with Windows 10. Upgraded other half's laptop to Windows 10 via clean install and he likes it. Me - I have never got over losing XP!

I loved XP- loved the simplicity. I then loved Windows 7 and still do - occasionally I would load XP on a machine just to look at it and play with it lol - sad I know! But I go with the upgrades once security support ceases. At least there's been a longer transition between Windows 7 and Windows 10 to get used to Windows 10.
Have found a clean install of Windows 10 seems to work well on most machines (except Cedarview Atom processors which will only run Windows 7 and won't even run Linux). And possibly not on some older ones with Nvidia graphics but that may have improved.
Initially it seemed quite fast but after all the updates find it is no faster than Windows 7 now and sometimes even slower - depending on the machine.
Pros and Cons. I like that it's so easy to do a clean install whenever and no messing about with product keys with it being on the Motherboard after first install. I like that I don't have to look up every update to fine out what it is and what the issues are - the updates tend to go well. When there's a big update, if it doesn't go well - easy to do a reset or clean install again.
I don't like the feel of it but got used to it - I remove most of the start menu apps and just leave weather and news and add shortcuts to control panel, word and calculator etc. Don't like apps - but the odd one for photo editing has been quite good and easy to uninstall again.
Word - I have MS Word 2016 and that installed fine. I'm sticking with it as long as I can and won't pay an annual subscription - if it comes to that I'll use open office.
I like that Defender on Windows 10 is Microsoft Security Essentials and built in - so a layer of defence from scratch without having to install antivirus straight away on a new install. After that I replace it usually.
It isn't so bad when you see past the glitz! It's basically Windows 7 with some flashy stuff on top!
I detest adverts in apps so rarely use apps. It works and you can use it how you want.
I still prefer Windows 7 but will move on in 2020 - although the Cedarview laptop will be useless then - so will leave Windows 7 on that - it's basically for games for the sprog anyway and he's moved onto games consoles but still likes playing retro games on it.
Currently I have Windows 10 dual booted with Linux on my main laptop. Linux has gone the same way a bit - heavier, bigger distros and too much flashy stuff! Won't fit on smaller drives sometimes (even the lightest ones have got too big for an Eee 4GB) and not always compatible with older hardware either.
I will keep upgrading older laptops because some new ones seem pretty rubbish - as well as expensive. Blame the demise of Windows 7 on Apple! Microsoft had to compete with iphones etc.
Two years ago I'd have said I'd keep Windows 7 forever - but I've got over it

Still haven't got over XP though

An old friend - so many of us grew up on it and I liked the music when loading lol!