I never head small Sennheiser, and had in the past huge one. I also last 4 years was fighting with headless headphones (like airpods and aftershokz) - and burned so much money in the end to be extremely happy with normal wired headphones. They super loud, super high quality sound, super bass, super mic. I love it, using 2nd week every day. May be not perfect for running, may be I dislike to hear myself when using them for talking, but in MRT I finally don't hear anyone, and without any noise cancelation).
Worthy buy for a best quality earphone!
This is not a flagship earphone but able to provide flagship-similar sound signature. Quality one and not disappointing. Well tuned!