I have been very impressed with my Quickmill Silvano since I purchased it a few months ago. I make 2 Lattes (minimum) each day, and the Silvano does everything I need it to do, and looks fantastic to boot.
My previous experience includes a Saeco Vienna super-automatic (my first machine, which lasted 4 years), and then an Expobar Office (my second machine, which lasted 8 years). With each machine I got better and better lattes. The Silvano is the first machine where the lattes did not get better - but they did not get worse either. The Expobar was better in steaming speed, but I do not mind the slower performance of the Silvano since it still makes excellent quality micro-froth with the stock single-hole steam tip. Maybe even better than the Expobar since its slower speed is friendlier to novices.
Espresso quality is excellent, although I notice the pump is not quite as strong as the Expobar. With the Expobar, I could pack the espresso as tight as I could muster and it would still at least drip out slowly. With the Silvano, I have stalled the machine a couple times by packing it too tight. However, if I pack it correctly, espresso quality is equivalent to the Expobar.
The PID is a nice touch and a cool gadget, but I have not really experienced any noticable performance gain because of it. With the Expobar, I would just wait about 15-30 minutes until the grouphead was super-hot to the touch, then the espresso came out the right temperature. For the second shot, I would just wait a few minutes and it was great as well. With the Silvano, the PID gives me more assurance it's at the right temperature (and maybe it shaves a minute off the wait time), but I'm not sure it performs any better.
One area where the Silvano performs better is during parties. I sometimes am asked to prepare up to 16 lattes at one time. With the Saeco Vienna, the single-tasking nature of the machine meant warm-up and cool-down pauses between lattes, making performance very slow. With both the Expobar and Silvano you can steam and brew simultaneously which is invaluable. However, with the Expobar I would run out of steam before making all the lattes, causing an embarrassing 10 to 15-minute wait period with nothing being produced and people staring over your shoulder. With the Silvano, my only worry is refilling the smaller resevoir to make sure I don't run out of water before all the lattes are prepared. It NEVER runs out of steam, and with the PID, you are sure the shots are at the right temperature. One point to the Silvano.
One area which the Silvano is noticeably worse is that the steam wand becomes untouchably hot after use. This can be inconvenient when trying to maneuver the wand during multiple lattes. Both my prior machines had insulated wands which got warm but not scalding hot like the Silvano. Maybe a thicker rubber sheath would do the trick? One point to the Expobar.
Overall, I recommend the Silvano to someone who wants cafe-quality lattes without the higher price of more expensive machine like an Expobar or even more expensive QuickMill models, but without giving up the simultaneous steam/brew capabilities that beat something like a Rancilio Silvia hands down in a multi-latte situation. And it's beautiful to look at as well!