There's something uniquely charming about how 'やりますねぇ' captures that mix of approval and mischievous anticipation. When I think about translating it, 'Well done, isn't it?' feels too literal, while 'That's the stuff!' misses the playful nuance. The phrase carries this specific energy where someone's impressed but also egging you on - like when an older character in 'JoJo's Bizarre Adventure' nods approvingly at some outrageous plan. Maybe 'Now that's what I'm talking about!' comes closest, with that combination of recognition and encouragement that makes the original so memorable.
What fascinates me is how this simple expression became iconic through perfect delivery. The drawn-out 'ねぇ' elongation gives it that distinctive rhythm, something English would struggle to replicate without sounding forced. In fan translations, I've seen creative attempts like 'You're really going for it, huh?' which at least preserves the conversational tone. The cultural context matters too - it's not just praise, but praise with undertones of 'I expected nothing less from you' that makes it hit differently.