Hi Guys, I picked up the Android operating system fairly quickly so this was not a problem but my biggest issues were:
1. Voice recognition in a email or text message did not recognise simple dictation punctuation like new paragraph, full stop and comma. Comma worked only if you said it a few times but by that time it had type the word several times. Siri on the other hand did all this. I use Dragon Natuallyspeaking 12 on my PC which is amazing and I rely on these tools to make my working day more efficient.
Try Downloading Swype Beta... Their speech recognition program is second to none. Again there is a learning curve to use it. They are the makers of Dragon Naturally Speaking, which is the most advanced speech to text program, with some time you can even train it to learn your accent.
2. I have a lot of email sub-folders and scrolling through these to select one was very glitchy unlike the iPhone which runs through them like ice on ice
I have no idea what you're talking about, the transition from main inbox to sub-folders are smooth as butter.
3. I use an exchange server and the phone on many occasions failed to sync calendar appointments and contacts automatically. Only worked when you manually selected the sync option. This may have been something to do with the poor GiffGaff network, not sure.
Can't comment on that. I only sync my emails on exchange servers and it works great. Can't comment on calendar since I don't use ir
3. Video call was unreliable unlike FaceTime
I can't comment on FaceTime, I haven't used it. But do you really use Video calls?
4. Could not move apps to memory card, so no massive advance over my 64GB 4s
But you can move your files to SD card, which can be removed from the phone, When your phone dies, you still have your files with you, you don't have to wait and pay for a tech to recover it for you. I'd say there is some advantage to that.
5. Weather widget did not update automatically
Settings.... LOL at least we have a widget to use. And there are tons of weather widgets at the store if one doesn't work for you.
6. When you choose to view an attachment on an email or a PDF/other file from a website the phone automatically downloads it, you may not want this every time.
Elaborate, what apps are you using? What websites?
7. I use the spotlight feature on the iPhone all the time to search for a contact or an app. The Google Now feature did not feel as smooth.
Not sure what you mean by 'smooth' but Google now is a lot faster ain't it?
8. I could not find a preview option on the notifications bar, you had to swipe down to see any new emails or messages
At the lock screen you will see if you have any new emails, then slide it starting from the email icon, and you're in the mail app already? Can't get any simpler than that.
9. S-pen was very responsive but I thought S-Note could be more user friendly when trying to share docs.
I have to agree with you on this one. But with any program with a lot of features, there will always be a learning curve. I'm still trying to learn the darn thing. But for now I have a different app that I use for Notes such as regular Notepad and to-do list. I can even post my list, or note on my home screen.

Simple but not as powerful. Again, you are trying to compare a feature, in which there's an alternative. You just have to spend some time on what you want, and you can make your phone do it. Unlike the iPhone.
10. S-Calendar was a poor attempt by Samsung. Apart from the hover feature it was not user friendly. I am sure there are better Android Calendars out there.
There you go! At least you are learning... LOL
There are many more small things that I did not like. I really tried to like the GN2, although I only used it for two weeks, I often tested it for hours on end. Before people say I am an apple fanboy, believe me I was not happy with the limited changes made to the iPhone 5 so wanted to move but the reality for me is that Apple works and works well. So much so that even when I tried to hate it I couldn't. After all time is money!
Like I said, Android is a very customizable OS. And with a some research and more persistence, you can pretty much do whatever you want in an OS. Clearly you didn't want to spend the time nor the effort to find out how powerful the OS can be. Like I said before, if you just want a phone that will work, and work well, the iPhone is for you. Probably we agree on that.
We do understand where you're coming from. And that's why there's Apple's and oranges (err... Android)... Because some would like Apple, and other's want Android.
Anyway, at least thanks for trying out the OS and we're sorry you didn't like it. But no hard feelings, at least you tried.... Cheers!