Yes, there are trade offs when using optical. It's stable but ARC with HDMI Control allows for source changes, audio volume and power control for all compatible devices. It would be the perfect solution all of the time if not so buggy. Bluetooth has bandwidth limitations to optical and ARC. But, you may not notice a change in the quality of audio using a particular soundbar with a particular TV. Sometimes, when ARC acts up, you can sort it out by going into the TV Smart Hub and selecting the SOUND tile and switch sound output from ARC(Receiver or Soundbar) to TV Speaker, then Optical and then back to ARC and it can do what it is supposed to do again. This is easier than pulling the plug but sometimes you just gotta' pull that plug. I've done it with my Samsung TV more times than I can count.