I wrote the same posts about my DD at a similar age, and then later again. I got her hearing test and had an appt with a speechy (at maybe 2.5 years), passed the hearing test and speechy was happy with how she was going. Speechy said they don't really worry about pronunciation until after 3. Having some language, understanding what you say, and trying to talk are all good. There is heaps of variation at this age.

DD hasn't really had a sudden burst of language that people talk about, but her vocab is certainly expanding and other people are understanding her more and more. She was just working on other skills while some other kids were focussing on speech.

Your little one lets you know what he wants, i wouldn't be worried at this age at all.