I have personal cdj 500s (+ small) and I am glad t:
easy to carry
really tough and impact-resistant (do not jump with vibration)
simple and effective no frills gadget
I never tried the 500ii cdj but I guess it's the same in larger
for a fly or a rack or I not see the point!
ps the pitch is less efficient than the 500s ... so 8sur10 a rule of thumb