Nice machine. Im not familiar with it but as I have 2 commercial (lever) machines at home, I find I really like the faster warm up time and lower power usage of my smaller single group machine (5L boiler) rather than my 2 group (13L boiler).
The main thing I would think about is that I notice the Nouva has a 10L boiler, and I assume it has an auto boiler fill.
So do you really want to heat up 10L of water each morning just to make a couple of cups of coffee? A good prosumer HX will do cups cups in its stride.
If you can manually control the boiler level and/or the machine is very power efficient, maybe a goer.
Hope this helps