AlbertLZJ
Please be aware that this forum is predominantly made up of acs owners so u r liable to get a much higher percentage of responses from acs owners.
I am one of the very few nurri owners who are active on this forum and have owned my L type SA Lever for almost 2 years now. Prior to that, I owned a traditional dipper style lever machine for a long time and so I am familiar with how much more powerful in capabilities and in ease of use hybrid levers are compared to traditional levers, good though ghe latter are.
The nurri and acs machines have similar abilities and both manufacturers are currently the only ones making hybrid levers that are available for sale. (The LM LEVA X and the kvdw spiritello are what i like to call hyper levers as they are machines in an entirely different class cost wise being much more expensive and requiring considerably more counter space. )
However the biggest difference between the nurri and the acs machines and which matter the most from a user and owner perspective IMHO is their very different user experiences. The nurri focuses on giving a hands on interface and experience and is minimalistic in appearance and controls. This means that apart from the pid, everything is controlled via the lever itself, 2 paddles and a knob that controls the preinfusion pressure. There are no timer or automation features at all and no touchscreens - there are just the pid and 2 analogue manometer dials.
What this means is that if u want to be in c
ontrol throughout the shot and extraction process, then the nurri is for you because it gives a lot of direct or fllexibility and control. However if u have to do a lot of catering and entertain large groups of people frequently for parties then the acs machines have timers with the ability to automatically cut off the shot at pre set pressure levels etc.
How I like to describe analogically to describe this difference is that the nurri is to the acs machines like apple smartphones arr to Android smartphones or like apple laptops are to Microsoft os laptops. This analogy extends to their different aesthetic design appearance also.
On your queries:-
“1. Pressure changes can be done for Nurri while pulling a shot (not sure about ACS)”
Yes correct for the nurri.
“2. ACS has more auto features than the Nurri (manual shot termination and pre-infusion) - no preference”
Yes that is correct but this is by design as I have mentioned above.
'3. ACS has better steel (corrosion resistance)"
I don’t know what are the steels used currently in the newest iterations of the nurri leva. But I don’t think this is a live factor especially for home machines that dont see the wear and tear commercial machines experience in cafes. This is particularly for the painted ones.
Whatever the case I have never come across any owner complaining of rust issues in a nurri.
“4. Nurri needs a physical electrical cutoff installed for the boiler at set temperature (bi-metal piece at the boiler) - can be retrofitted at low cost.”
I don’t understand what you r referring to. I am not aware of anything that the nurri needs along those lines.
“5. ACS has 3 single PIDs while Nurri has one PID with 3 outputs/inputs - I’m not sure about the pros/cons of this in terms of accuracy/reliability”
It makes no difference operationally. The nurri pid has 3 independent channels that perform independently of each other.
