Hello alexw86. Thank you for spending time listening to our recordings.
Regarding your U1 Silent piano....I know for a fact that one of our members here has a Yamaha silent piano too, but I'm not sure the model number. He is not very active on the forum, so you probably won't get any comments from him regarding this.
I'm sure my family would love if my piano had a 'silencing' feature! That the touch of the keys feels about the same whether you're playing in the regular mode versus the silent mode is good. However, the change in the way the pedal feels might bother me. I'm currently working on a piece that has tricky pedaling (for me), and I'd be afraid of screwing up my progress if I have to pedal differently on the silent mode. Still, it's nice that you are happy with your piano.