My wife has always had the iPhone but switched to this one and is so happy! I myself have a Note 8 that she has been sneaking on but which was too big in her look, so this smaller model of the Note series became a perfect match for her.
I have big hands and have no problem using my phone with one hand but sometimes feel that it feels a little big in my pocket. Note 10 feels much more comfortable in your pocket but still has the same size display as my Note 8 has!
DeX in Note 10 works great and can replace anything that at least we use the computer at home. If you connect the phone to a monitor, the phone switches to a PC / Mac-like interface and can then be used as a normal computer with mouse, keyboard, hard drives, printers and so on. as well as Microsoft apps like Word, Excel, Powerpoint etc.