Esp prog v2 hardware for esp32-s3 and other boards

Been with arduino with ms visual code editor for a while and and arduino ide. I would like to know for the seasoned user how is the external debugger compared to the internal one? Is it worth it to buy and plug it, does it relieve the internal processor and accelerate a lot of the process or you don’t see any difference. I understand that if you want to debug the esp-32 which does not have internal jtag would be nice. Even the esp32-C3 has the jtag also even if processor is slower would be same thing. so exception of the normal esp32 is it worth it and much faster in response ? I do small code couple hundred lines not big projects for the time being. Thx