ruffino - you can spend your money at a modular school and walk into a job the day that you graduate and you can attend an integrated course and never find a flying job. There are no guarantees in this industry, neither does it matter one jot whether you attend an integrated or modular course, nor whether you train in the UK or overseas.
All that matters is the quality of the training that is provided and your own ability. If the training, whether from an integrated or a modular training provider, is not up to the required standard or if you do not have the required ability (and not everybody does) then you will not succeed. However, if you make wise choices and you have what it takes, you will succeed in your ambition to be a professional pilot.
You must make your own decisions, based on your own research. Many of the responses you will receive here will be from training providers seeking to advance their own interests, others will be from people such as yourself who have committed to one or other path and are seeking to justify their decision. Remember that what is right for one individual can be quite wrong for another and treat any opinions advanced here with the deepest of suspicion.