Other than the felt feet, I would have to think about that. The machine works just great. I would definitely follow the DaveC documents I linked, and program the machine to his settings right out of the gate. I keep button 1 set for 6 seconds pre infusion, and 30 second run time. This is the button my wife uses since she does not weigh the shots. She just wants some rote way of doing it. For me I have button 2 set to 6 seconds of pre infusion, but no end time. So when I pull a shot I use button 2, and have the cup on a scale. When I reach my ratio of say 2.5 to 1, I push the button to stop it. I look at the shot timer to see how I did. With my coffee I find a temperature of around 198 and around 35 seconds of extraction to be perfect. I can steam milk while watching the scale, and hit the button. Very simple. For the next shot I then weigh out the beans, and grind. While grinding I knock out the puck and do a quick purge by hitting button 1 and 2 at the same time, which is what it is designed to do (hold 1 and hit 2, then let go). By the time I have the portafilter loaded and ready to go, the temp of the brew boiler is back up to 198, so ready for the next one. I have my machine set to show the actual temp, not the target temp. Again, that is in the programming.
You’re gonna love it.