Audio 4 Dj, help me to choose! TC problem

   

Hey everybody, i think i am going to buy a audio 4 dj, what do you think about it? would it be good for me to buy it, i'll use it with traktor, with cdj1000mk3 and djm 600, and of course timecoded cds, i dont know the word but, what about its reaction time, when i cue or pause the cd, would their be a huge amount of time in the software, or would it stop exactly when cd stops? ? i have to learn these, also i have chance of buying serato SL3 i think its 'the best' in the market? is it, please help me ! ? Please dont go off topic and mostly comment for audio 4 dj, (also, is traktor software included in audio 4 dj package?) Please help me!!!

I should buy the Traktor Scratch Duo package, then you also get the cd's, vinyls and multicore kabels!!