I've read a couple of reviews and... It's free for the first year...

That's about where it stops being attractive to me, but that's probably because I'm one of those tech-dinosaurs.

It seems to be gimmick on top of gimmick. I had a hard enough time (I still do) getting around Windows 8, the last thing I want is more confusing and, on the face of things, pointless add-ons that just bleed any semblance of pleasure from the computing experience.

I read something about retinal scans replacing passwords. What? When did this become a James Bond movie? Lol.

I'd leave well alone if I were you, OP. Windows 8 was an absolute disaster, and foisted on the public far too soon, and before it was thought through properly. I have just had a new solid state hard drive installed into my laptop (5 years old) because, although I quite fancy a new one, I am reticent to change from Windows 7. Does everything I want it to do, I like the interface, and it's user friendly.

http://mpegmedia.abc.net.au/rn/podcast/2015/07/bst_20150723_0846.mp3

This technician recommends Windows 10 and says it is superior to 8.  He says it is the last version of Windows and to "go for it".

I would appreciate any opinions or advice from people here who are tech savvy.