Streamer for sure. Without it, I need closed captions, which requires focusing on text. With the TVS2, I can look at the actors instead of the captions; that increases my enjoyment when the acting is good. Also, the TV volume is much lower with the streamer, which my neighbors appreciate. (I live in an apartment.)
The TV Streamer 2 does mono and stereo but doesn’t have an HDMI input. Sound from my TV is better via HDMI than via optical, and that’s a bummer. The TVS2 has an old style USB power connection. I don’t know the limitations of the old ‘TV Streamer’.
The TV Streamer+ looks like it gets power from USB-C, has an HDMI input, does Auracast., and looks like it’s less than half the size of the TVS2.
The only brand I see on my TVS2 or its box is ‘GN Hearing A/S’ in Ballerup. My bet is that the TVS2 is exactly the same whether it goes with ReSound, Jabra, Beltone, or whatever brand relabels ReSound devices, though prices vary from brand to brand.