Google searching suggests it is fully recognised by schools. I do currently volunteer a couple of hours a week at a primary school so that may help - although work placement is not required to study this course.
I did a CACHE Level 3 certificate in supporting teaching and learning in schools. It was 6 months, one day a week school placement and one evening in college. It was really enjoyable and went really quick. I work as a SEN TA atm.
TAs are considered expendable by schools. Be prepared for term time only contracts on the lowest banding. Your hours will fluctuate in line with the 'needs' of children you work with at short notice don't do it
Courses that give ‘awards’ rather than certificates or diplomas are generally to be avoided I think. Simply because they are theory based rather than based on actual practice in a school. This is a good guide
Be wary of embarking on any course without checking it will actually help you get a job? Are you really sure you want to be a TA? The pay is crap, the workload is increasingly heavy and there is very little job security. And that’s if you can get a job. Term time only jobs are very coveted and schools can be choosy. Every single TA in the school where I work has a degree as well as practice-based TA qualifications