I really like it! There's a lot to get my head around - the iPhone was easy in comparison, there are so many more options with the Note 3. The reason I chose a big phone is that I hardly use my phone as a phone, but I didn't think it was worth me having a tablet as well as a phone, so the Note 3 does both.
So far my favourite app is Sketchbook - I've recently taken up painting, so I like being able to sketch ideas. The S-Pen is great for that!
Any apps or widgets you'd recommend?
I've got a Note 10.1 2014, Thats got the S Pen, I originally didn't think i'#d use it, but actually I use it almost all the time!
Whatsapp as you can send as many texts to another user of the app & it's free.
Cerbeus in case you mobile gets stolen
What Feckit said! lol
Cerbrus is well worth the money,
https://play.google.com/store/apps/details?id=com.lsdroid.cerberus - Plus you can have up to five devices on one account.
Whatsapp is a must imo, I use it all the time.
Also for me Chrome (Bookmark sync) is a must and Feedly for news feeds.
Lastly, ditch the touchwiz launcher and install Nova instead.
https://play.google.com/store/apps/details?id=com.teslacoilsw.launcher
After that its up to you.
Oh and try Google Keyboard, Swype or Swiftkey as a replacement for the stock one. I found the Samsung keyboard awful on my S4. Though on the 10.1 its actually much better so that will be very much personal preference.
If you get stuck with anything fee free to ask.