DS is two and a half, and he's talking a lot. However, much of it is pretty indistinct. I can make out most of his meaning, but others can't, including his father. I only realise this when I have to translate for him to family members and I genuinely have no idea what's normal. His peers all seem to be way ahead but they are girls and I'm not worried about the stage he's at, just the slurriness of it.
Phoneme-wise, he is fine, and his grammar is coming on in leaps and bounds (spot the linguistics graduate) but it's such a mish-mash most of the time.