This phone is the perfect size. It fits in my hand and I can actually use it one handed easily and comfortably.
My only complaint about the Note 10 is that Samsung had to sacrifice so many features that the Note 10+ has besides all the features that were already sacrificed for design and size reasons.
Unless Samsung ever makes a Note E-series, none of the Note series phones should sacrifice anything, they're supposed to be the power user's phone.
Otherwise, this phone is beautiful, powerful, and I love it. I love the idea of size choices in the Note line.
I have included some pictures of the Note 10 next to my Note 8 for size comparison since they both have a 6.3" display.