I’ve only had the Rexton Trax 42 for a day now, but I love it already (especially compared to the Phonak Brio aids I had before!). I can’t tell a difference yet between these aids and the Siemens Binax ones I tried a few months ago, so that seems to be awesome (the Binax cost was ~2x the cost of the Costco aids). The sound is much, much clearer/crisper/cleaner to me (it sounds normal, like I don’t feel like I’m hearing the extra sound I did with the Phonaks that was unhelpful). I didn’t buy the Bluetooth streamer, but probably will next time (would prefer the http://www.rexton.com/us/en/accessories/mini-blu-rcu/ , so that I don’t need anything hanging around my neck , if Costco carries it?).
I also tried the Android App (Smart Remote, I think) today. It worked relatively well. I was able to change volume and programs with my cell phone itself (no bluetooth, no streamer). My high-frequency hearing is good enough to still hear the high-pitched tones it uses to communicate with the hearing aids though, so I don’t know how much I’ll be using it.