I would say it was more than marginally worse. There were several instances in which I actually took my hearing aids out, and then was able to hear what I needed to to communicate (since my right ear is passable in most scenarios). I haven’t found myself needing to do that with other aids in similar situations.
The first scenario was when I was checking in for a doctor’s appointment. There were 3 receptionists in the area; one checking me in, another on the phone with someone, and the third speaking with a nurse. And there was also those plexiglass dividers. All of their voices (plus the nurse) were just all simultaneously mixed and jumbled in my ear, and I couldn’t understand one from the other and separate out which voice was actually directed at me. I tried to ask the person checking me in to speak up, but I could still barely understand a word. I pulled my aids out and it cleared up just fine for me then.
Second example is one of those casual restaurants where it’s an instant made to order meal (similar style to a Chipotle). It was relatively busy, several people in line, multiple customers being helped at the same time. Again, couldn’t understand really anything the person putting together my order was saying/asking me until I took my hearing aids out, and could tune out the person ahead or behind me. With other hearing aids, there was far less of a struggle to hear and understand the person I wanted to, though I’ll admit with the Signias I’m demoing so far, I haven’t been in as many more “complex” environments. But with a small sample of A/B comparisons I was able to do, there was still a noticeable difference in understanding for me, personally. But with my Oticon trial, I had significantly more success in understanding people in those situations.