I've had really bad luck with Samsung products of all kinds and have sworn them off although I still have my 2500 blu-ray player. From phones, to tvs, etc. However, a friend of mine was given this 6500 model Blu-ray player as a gift and it's been nothing but headaches. I think one should only give Samsung products to people you "don't" like.
Anyway, it's an attractive unit, with decent feature list. My friend doesn't use streaming so can't comment on that. But it would not play any disc all the way through. Whether it's DVD or Blu-ray...at some the drive would start stalling and then freeze. After that, nothing would clear it up. If we powered it off and waited till next day...it would start to play again and then repeat the same behavior. This led me to think it was probably heat related, so we put some spacers under it (where it felt very hot). This did not change the behavior.
I looked for firmware update and found one. Successfully installed it, and was finally able to play a movie all the way through. So, I got the next one to put in...and it would not load it. Arrrrgh. Says it can't read the disc. I went home, put the disc in my old 2500 and it fired right up. After the updates, it will play discs all the way through without freezing, but it now just won't load certain discs. I put all those discs it would not load through my old player and had no problem. So, that was that for the Samsung.
They ended up with the sony 590. It's not as nice/fancy looking case, etc., as the Samsung, but it loads every disc they have and played them all the way through without complaint. Friends don't let friends buy samsung.