Sorry for the late reply. Yeah, sooo much better than the Preza’s I trialed. I know everyone’s hearing is different, and some models work better for various reasons, but these are just about perfect for me. Speech clarity is much better than the Resounds I trialed. I hear my wife though her heavy accent MUCH better. Love the truly hands free calling with my Androids. My family, friends and co-workers say that I sound much better over the phone, and it’s great not to have a third party piece to gear to have to fiddle with and keep charged. Only thing I haven’t been able to test is the crowd/restaurant one since we can’t do indoor dining right now. Very interested in how that works.
Every now and then, the Autosense (or whatever Costco calls it) fades in a background noise, but it’s usually just a second or two, and few and far between. I would argue that the Resound app is superior to the Phonak one (can’t beat firmware updates over your phone), but love the freedom to switch between phones and tablets. Music sounds amazing on it. I’ve been listening to Tool’s Fear Innoculum a couple times since I got these, as it sounds way better with the new aids. Edit: this model doesn’t yet have Phonak’s multiple device connection capability like the KS9.0’s. The audiologist figures it’ll come in a few months in a firmware update. She figures that they want to lag some features like that to motivate people to get the real thing as opposed to the Costco version. 
If you can, get the TV streamer. I put it on my TV at home, and there’s great sound, respectable bass, and no lag that I can detect.
Incredibly happy with these. Just FYI, they’re the size 13, BTE, regular tubes. I’m 40, so I don’t care if the tubes are visible. Younger folks might feel self conscious about them.