I'll wager that the quality of espresso from your new machine is little different to your Silvia (when surfed)
But, I think your new machine will be waaay better at frothing milk, and also at keeping the cups hot. The passive heating of the Silvia is shit in this respect.
I'm semi regretting not snapping up the Epoca that went with the Mazzer, but there would have been a lot of explaining to do and possibly some time in the cooler.
I think you're right. No, I'm sure you're right. The Silvia can do espresso as well as anything with a bit of care, I reckon.
I am going to try to get single shots from a single basket with this machine; it came with heavyweight single and double portafilters. I used a double basket in a bottomless portafilter on the Silvia, but the greater height of the group on the new machine means a bottomless jobbie showers coffee everywhere if you make an espresso with it. And I'm in enough trouble already. It's fine with its supplied triple basket for one of my big mugs though, for a long coffee.
I think the MC2 will grind fine enough to get a 20 second plus extraction from a smaller amount of coffee, and if it works it will be a good thing for a number of reasons!
I will then have to figure how to adjust the grind between the single, double and triple portafilters. It will be brilliant if they just work on the same grind, (great for after dinner to be able alternate the single and double to produce a batch of espressos), but I don't think it will work like that.