We do not yet have guest reviews for the Beaulieu Road Pub, but we've stopped there many times ourselves and can say a word about it.
This is not the the place you'd aim at for special food or drink or ambience. But at the end of a forest walk it's perfectly pleasant and in the right place at the right time. Go there without high hopes and you're likely to be pleasantly surprised. On warm sunny days do go out into the garden, especially with children.