Sorry about the formatting. I'm on mobile. I'm switching from a Xiaomi Mi Box S that I got on sale around last holiday season. My experience with the Mi Box has been very lackluster, despite all the praise I saw it get on reviews. The performance was atrocious, CEC barely worked on it, there were a ton of bugs, and the remote was cheap, flimsy, and unresponsive. I could keep going but I digress. Needless to say, I've had a JBL Link sized hole in my living room for more than a year so I immediately pulled the trigger when it became available. I've been playing with it for about 4 hours now. Here are some things I've noticed:

Sound is good, but not $400 good. It's better than my TV's speakers so I'm not complaining. It's lacking on the low-end but I'm ok with that since I live in a townhome with thin walls. There are cheaper sound bars out there that perform just as well, if not better. Note, I do not plan on getting the subwoofer.

The performance is good. Moving around the OS is responsive but not super fluid. Android TV is known for being clunky and sluggish, but I like it nonetheless. The Link Bar is not as fast as the Nvidia Shield but it's not much slower either. I'm perfectly happy with it.

Switching through inputs with voice can be a bit clunky but it works. It recognizes the PS4 and the Nintendo Switch by name, but doesn't recognize the Xbox. Instead, you'd have to say "switch to HDMI 1" or something like that. Another note on this, if the command is going directly to the Link Bar or the remote, you don't have to specify the TV. If the command is going to a Google Home/mini/Nest Hub, than you'd have to say something like "switch to HDMI 1 on the living room TV"

I don't see any way to be able to set your own names to the HDMI inputs which is a bummer imo. I'm sure this can be fixed with a software update.

The Google Home app recognizes it as an Android TV device, not as a smart speaker. It doesn't let you pair it with a speaker group unfortunately. This has been causing issues for me as I have a Google Home mini and a regular Google Home in my living room. They can sync commands and music to each other but the Link Bar cannot. This has caused some weird overlap issues if all my devices hear a command at once. I know you can add a newer Chromecast to a speaker group but that doesn't seem possible with the Link Bar so far. I really hopes this feature gets added eventually.

CEC and ARC works great on it. The power button on the remote turns off the TV, not the Link Bar itself. That's a difference (but much appreciated change) in behavior over the Mi Box S, where the power button would turn off the TV and the Mi Box S itself.

If the TV is off and you turn it on while it's playing music, it'll cut off the music. It seems the Link Bar behaves as if it's a Google Home speaker when the TV is off but changes to behaving like an Android TV device when the TV is on. When it's on and you tell it to play music, it'll play it in the Android TV app. If you're on a different HDMI input, it'll go back to the Android TV page and start playing music there. If the TV is off, the music only plays from the sound bar in the same way a Google Home speaker would. Turning on the TV in this instance doesn't take you to the music app on Android TV.

Ethernet is only compatible with 10/100. No 1,000.

Switching to the input that has the PS4 automatically turns on that console. It doesn't do the same for the Switch or Xbox.

The performance on the mics is very impressive indeed. It can pick my voice up over a ton a noise, and even music coming from the sound bar itself at almost full volume.

I don't think this supports Stadia, and I don't know if it will at launch. I'm sure it will eventually though.

The service port on the back of the device is type-c. It's a small detail and I like it. The more type-c in my life, the better.

I'm still playing with it as I've only had it for a few hours. So far, I really like it, and the things I dislike about it can all be fixed with software updates. Supposedly all those come directly from Google for 3 years or so, so I'm hopeful.