the difference is night and day when comparing the two… the dj2 is a very basic controller for learning on, as you noted the pitch fader is incredibly small although on 6% pitch range in vdj it gives 0.01% resolution but it is pretty hard to beatmatch with because of its size… that said it’s not impossible with micro adjustments.
the jogs are very loose when spinning which is something to consider… their resolution is 128 steps.. I can bend and scratch on them fine.
The thing you missed is the transport buttons… they are horrible, my play button hardly ever works now…
The dj3 is a whole ‘nother animal, everything on it is improved…the jogs are larger, have torque adjustment and something like 2000 or 3000 ticks per revolution…they feel amazing to use..
All the knobs, sliders and encoders are great quality and feel like a mixer should…. one criticism is the led rings are a little hard to see unless you are directly above the unit…
The buttons are all different, they have rubberised pads, although im not fond of the action as there is a big click before it triggers, but they’re fine to use…
for me it’s the perfect size making no compramise to fit a small form factor like the denon.
I definately recommend the dj3 in its price range… if you are on a budget the dj2 is acceptable for a starter.