I found them to be extremely dishonest and, by reason of sheer size, very aware of the fact that they are able to virtually exist above the law. What I mean by that is that they have no problem whatsoever throwing their weight and money around to cause so much damage that you'd rather take the abuse and the loss instead of fighting them.
In our case, they had one of their top three US executives blatantly lie in court. I could not believe it. This guy repeatedly lied under oath and his attorney (a Samsung attorney) did the same.
Could we have won? Absolutely. It would have required a million dollars cash (on top of the damage they caused my business) and probably two years of being buried under an intense legal campaign designed to cause damage at every possible turn.
Here's an example of what they did: They filed for a broad TRO (temporary restraining order) to keep us from talking to any of their competitors at a time when they breached a contract and discontinued components we designed into a line of products over a period of about ten months of work. Components the top Samsung executives in the US helped select and vouch for.
The TRO covered getting within a certain radius of a trade show attended by Samsung as well as every single one of their competitors. The radius was such that we couldn't even park a car within walking distance of the convention center, much less come in and go talk to alternative component sources. A few weeks later the judge who oversaw the TRO chewed-out the Samsung attorney for resorting to such a nasty destructive approach. Still, the damage was done. You'd have to fly all over Asia to see the people we could have seen in a couple of days at the conference.
So, yeah, I've seen one side of this beast and it's nasty. Nearly killed my manufacturing company. I don't generally think of large corporations as evil but in this case I could be convinced to make an exception.