Surface Book 3 Randomly Freezing

I think there are a couple of Problems mixed in this thread.

I have the SB3 in Basic Configuration (German QWERTZ-Keyboard) and had a bit of an Odyssey already.

The first model I bought and still have has the issue of "keyboard-freezing" for ~5 seconds. I can't figure out in what frequency the problem occures, sometimes it's only after 30min, sometimes it's every two minutes.

I never noticed it with a MS Bluetooth Mouse paired with the SB3 though.

The second model I bought had an issue with the hinge-joint. It was quite loose already, so I returned it instantly.

The third device had an issue with the headphone-connection and bluetooth-audio (seems to be another widespread problem), but the freezing never occured. Nonetheless I returned it and hoped, that the 2004-Update might solve the problem on the first device. Well, it didn't.

I reinstalled windows several times, also used the Surface-Diagnose-Toolkid without any results. I even interchanged the keyboards, in order to figure out if it's a keyboard-hardware issue. It wasn't. 

I don't know what else to do, so I'll send it in for repairs this week. Hopefully I'll get a working device in return.

Edit: Allmost forgot. There might be two other issues connected to this one. Sometimes I get the feeling, that the keyboard isn't as responsive as it should be. Or I don't hit the keys hard enough, which was never an issue with any other keyboards I used until now. Another issue is Touch-responsiveness in Tablet-mode.

Anyone else with these problems?

Why go through all that? Why not just buy something non-Microsoft?

Got the same issue, for me, the issue occurs less often when I completely turn off Bluetooth. But still happens once or twice a day. (With Bluetooth on it happens like every 5 min)

I had the same problem and sent it back for repair a month ago. Still no news from Microsoft. I'm getting really upset with all this, specially considering the price range.

I have a Surface Pro 7 and I also had the issue with the screen randomly changing its brightness. It´s caused by an energy saving feature of the integrated Intel graphics. I use my SP7 for writing so this was really annoying to me. 

What fixed it for me was downloading the "Intel Graphics Control Room" app from the store. Once downloaded go to "System" at the left of the screen and then "Energy" at the top of the screen in the center. Once there you´ll see a bunch of battery information and some toggle buttons. One button is named "Adaptive Screen brightness". Turn it off. For me it was enabled by default. Turning this off instantly fixed the issue. Sometimes the screen still randomly changed its brightness (at least in my case). If/when this happens just open the mentioned app, go to this setting and toggle the button from off to on and then off again. For me this only happened after a reboot if I remember correctly.

After a while this stopped happening completely and auto brightness just stayed "truly" disabled. This is actually not caused by Microsoft, but rather the Intel drivers. There is also a way to do this in the registry but I´d personally prefer the "official" way of doing it. I can´t remember if I actually did this fix in the registry or if it stopped "re-enabling" itself on its own anymore. But the Intel App definitely works.

I´m having the same freezing issue on my Dell XPS 15 9550 but I can´t help you there since I don´t know what´s causing it either.