I can say that, I was there since the countdown to logging in for the start of service to the end when "Connection Lost" popped up after service ended and enjoyed every moment!
I still have quite a few of my 1.0 gears and items, and my legacy title i always have set (from 1.0 little ladies day) which i get asked about all the time and usually ends up with players finding out about 1.0 for the first time.
Lots of things i miss, the animation was mind blowing, graphics and detail where extreme, and the fact you couldn't jump...



In the credits under *K* you can see my name "Kitty Of Quetzalcoatl" which is my Final Fantasy XI character and world (still active).