I love the whole film, but this scene is a perfect mix of suspense, action, stunt work, with amazing 80s atmosphere with it's neon lights, rock+synth music, weird fashion and uzi nein milimidah.
A really great insight into infiltration process. Even in T2 the resistance led by Connor fought on almost equal footing with the machines in open battle (which makes sense since he won the future war). In this one we see how dangerous T-800 units are when equipped with proper weaponry. Another plus of this scene is it shows that you don't need Arnold to make something atmospheric and genuine in T franchise.
This scene puts "badass" into badass. This is probably the most iconic scene of Arnold in any movie.