Pollitos wrote:’m hoping it can do good enough piano for jazz ballads but also 60s to 80s organs, ep, clav etc.
It's fine for all that. (Well, depending on what "etc" is.)
Compared to newer Nords...
Piano - basic quality/tone about the same, except without the option for a longer release and more sophisticated string resonances. Less memory means you'll probably want to settle on one or two "best" piano sounds to use, rather than being able to instantly switch among a wide variety.
Organ - functionally similar. Most would say the new ones sound better (especially the Leslie sim), but the original is still good (if you're fine without traditional drawbars). You might consider adding an external Leslie sim pedal at some point.
EP - up until the new enhanced samples that came out about 3 months ago, I would have said the EP was basically unchanged, except for less memory again restricting how many choices would be instantly available to you. But there were plenty of Nord users who were content with the EPs we had up until 3 months ago, too.
Clav - better on the old model than the new, as all of the original EQ options ar supported
The biggest issue is the "etc" -- if the other sounds you need are synth sounds, you're probably fine. If you're looking for reasonably authentic sounds of other acoustic instruments (strings, brass, winds, guitars, etc,), or the sounds of other "vintage" keyboards (mellotrons, etc.), you're out of luck. That's where you really need a later model.