Can you really reach Intermediate Level French with Rosetta Stone 1,2 and 3?

No. Just forget it. It's ridiculously overpriced, overrated and overhyped. All it does is make you repeat simple things like a parrot, nothing else. No context-based learning, no feedback, no grammar teaching, no nothing. Cash-in for absolutely nothing, because this will never ever be able to replace real face-to-face language lessons nor other "conventional" language learning methods. Please stay well away from these kind of "gimmicks"!