I ordered this TV to replace a 55" 4K Roku TV made by another manufacturer and although it is a little smaller the picture and colors are far better than the old 55" TV which died on me suddenly. Even the local over the air stations look bright and clear and appear to be of a higher resolution than they are actually being broadcast by the TV stations which is due to Samsung's phenomenal processor in this TV.I was a little irritated that I had to create a Samsung account in order to complete the setup process and could not receive any of the Samsung channels or add my Prime Video account to the TV until I did.The Home screen and the remote take a little getting used to but I figured out how to maneuver about fairly quickly once it was setup. I was able to attach an Android Box and a Roku Box to the HDMI ports for access to other internet based viewing which was already setup on those devices and that went pretty smoothly but I was unable to connect an older DVD player/recorder to it initially because it did not have HDMI out so I was able to get a converter to adapt the RCA outputs on the DVD Player to HDMI 1080P. The converter works great but I had to define that port as being connected to a PC because it did not have a selection for my unit in the device list which only lists Blue Ray Players and tries to program the Samsung Remote to control the player. I'll also use the same HDMI port to connect a computer to the TV and use the 50" screen as a computer monitor which works great at 4K resolution and allows me to have up to 4 applications open on the screen at once.My previous TV had a headphone jack which allowed be to connect the audio to my stereo's auxiliary inputs. The only audio output supported by the TV is the fiber optic digital audio port so I found a $11 converter which converts the digital audio to analog audio and has both a headphone jack and a pair of RCA jacks to make the necessary connections. With that setup, I disabled the speakers on the TV and just use the stereo remote to control the volume and it works great.The tuner on this TV does not seem to be as sensitive as my previous TV so I am unable to pick up as many local TV station on this TV and I plan to get a TV Antenna Booster to bring in more channels. Once that is in place I'll be a happy camper once again with all the options I am used to and the additional Samsung channels to boot. I have not fully explored the Samsung channels yet but hopefully there will be a few options that I did not already have access to.I did not setup the voice control because I just don't need or use those options and prefer the old art of channel surfing with the remote control.The main advantage of this TV over my previous TV is the superior video quality which I really like. What I do not like is the necessity to purchase and add the two converters and the antenna booster to make it fully functional (for me) but I expect this TV to last several years without failure since Samsung has a good reputation for building quality equipment.The TV is extremely thin which is because of the QLED backlighting and it is fairly lightweight. It was also easy to attach the stands which did not require screws like most of the TVs I have had in the past. The stands just slide into the slots on the back of the TV and they just click into place so they do not fall off when moving the TV.I decided to give this TV 4 stars because the picture is great and although I had to buy a few extras to meet my needs and the total cost of the extras is under $60.