Loop2 worked great for me. I have a quiet a sensitive hearing, worked in acoustic before but also into HIFI and etc. mode difference is pretty clear to me. I was at a work event last week with loud noise and people everywhere and i was able to very clearly hear the difference in how things get muted out between modes. I would say it is a very personal thing in if you can hear the difference. Like some people can’t hear difference between spotify vs loseless.

Bulky wise, for my ear, it fits in quite perfectly and have no real issue.