C1-10.1 So far so good

My Computer Setup
MacBookPro 17-inch - mid 2010 build (we are both getting on!)
macOS Sierra 10.12.4
2.66 GHz Intel Core i7
8 GB 1067 MHz DDR3
1TB Oyen HDD 7200 rpm
NVIDIA GeForce GT 330M 512 MB
Intel HD Graphics 288MB
Nikon D3

Trying C1-10.1 My Licensed version is 9.3 (There was so much fuss on this Forum about 10.0.x I did not attempt it.)
So far I have tried Tethering to Nikon D3, both via USB2 and by Camranger. The latter is slow but functions well.
Did a Round Trip Edit with AffinityPhoto - returned a 53MB tiff - no issues
Did some Keywording - OK
Tried Dual monitor -OK
Catalog and Session seem to be slightly faster than 9.3 (Small 400 image catalog upgrading form 9.3)
Guess I will get out my upgrade wallet.