a lot of youtubers reviews now.

mostly positive and was regarded as one of the most worthy to buy airpods pro product after 3 years of waiting for refresh.

sound quality improved especially vocals.
transparent mode is now even better than before.
ANC is better but certainly not as what apple advertised as 2x ANC than previous gen.
now the ear buds fits even more than previous gen but similar to any in-ear earbuds, after 2 hours or more of listening to music, ears will still feel uncomfortable. think for those who are more sensitive to this, airpods 4 ANC may still be a more excellent choice.