I took a test prep course from a high-end, nationally known test prep company and I was scoring in the mid to low 600’s on the GMAT. I started working with First Choice and I started to see how the test worked.  The curriculum was rigorous and the homework was hard.  But the next time I took the test I got a 700.  In hindsight I wouldn’t have bothered with the national test prep company – I would have just started with First Choice.