Thanks all. Appreciate your good words.
The Bianca has arrived today and I am thinking my game plan to test drive it. May I leverage this thread to get some beginner advice? In particular, as a manual lever user, I can control flow, preinfusion time, amount of pressure freely manually. I do not understand how I can work with these with the Bianca. Suppose I can achieve the same control via the flow control(?). At the moment, I imagine the workflow can be:
0/ wait for temp to buildup, usual puck prep. Any flushing needed for the group head?
1/ while keeping the flow control closed, the pressure will build up slowly after I press the button. Then preinfusion starts.
2/ when I see the first drip, I pull the flow control all the way to the right to start the extraction. (Note: so I think I have no control on preinfusion time at this stage? I can only affect the preinfusion time via grind size.)
3/ during the extraction phase, I can monitor the pressure. So I think I have no control on the amount of pressure at this stage (instead I should change the grind size to change the pressure)? Or I can play with it by controlling the flow control?
4/ once I have the desired amount of liquid, I close the flow control.
5/ Remove the PF and clean up. Any flushing on the group head needed?