Yes I’ve got a Smart Grinder Pro, I wasn’t sure about getting it after reading lots of reviews but as it was £150 brand new I couldn’t turn it down. I single dose so only set the grind level and ignore the timer. It has a bit of retention which is about the only issue I have with it. I think I have my grind setting at about 16 so still have a lot of room to adjust (medium roast beans about a month old).
I’ve not done a great deal to the Classic as it’s still under warranty. It’s got a 9 bar OPV spring, slim drip tray, “the one” steam tip and IMS basket. PID is definitely on the cards next.