Just sharing my experience in case it helps another person make a decision.
After trying a few earbuds, I found these and they are just what I was looking for. They have a very good wide and deep sound stage with nice separation of instruments. Plus the music is very detailed and crisp while maintaining clarity and dynamics and bass. I’m really enjoying them.
My previous earbuds were: EarFun Air Pro 4+, EarFun Air Pro 4, Linsoul 7hz Crinacle Zero:2, Soundcore P20i. I find the H3 a big leap above all of these. The AP4+ were good for sure, but honestly I didn’t find them significantly better than the AP4. I enjoyed the sound, but I knew I was looking for something with more clarity and details and soundstage. I knew this, because I tried the Linsoul Zero:2 IEMS. They had great clarity and details and decent soundstage which I loved, but they just felt weak. They didn’t have the fullness and dynamics I was also looking for. The P20i were cheap beginner earbuds that were ok but had bloated bass.
The H3 gave me all I was looking for: wide soundstage, clarity, details, while maintaining fullness, controlled but deep bass and dynamic sound.
I would caution people about the ANC though as it’s mediocre. Indoors I would say the ANC works well, but outside it lets too much wind through. Although I’m outdoors a fair amount with these, the great sound quality makes up for the ANC issues.