Well I left an integrated course and completed my training by the modular route.
Differences? Well by going modular I had to do another 50 hours airborne. That as far as I can see is the only difference.
Oh and I also spent less. Same exams, same flight tests but by going modular I gained experience. I have visited over 30 airfields - how many ab initio integrated students can say the same?
Although I can never say what the outcome might have been if I remained integrated or did the whole course modular - I can say that my exam results were better when I was modular and that I passed my IRT first time. I have gained a great deal of flying experience and I start work next week - flying, not flipping burgers.
Hope this helps
dibs