For the TV, I'm a big fan of Samsung, but as stated above, the Vizio is a good deal too. For example, I have a vizio on the back porch (that becomes my bar TV in the winter. My sitting room TV is an LG OLED that the people left in the house when they sold it to us, i have another Vizio in the bedroom, and my main TV in the theater/game room once finished will be either a Samsung or LG depending on the deal i can get when i'm ready to buy.
as for the soundbar, just like automatik said. i first experienced a sonos system at a friends house and have slowly converted myself. My sitting room has a Sonos soundbar, we have 2 sonos 1 speakers and soundbar and subwoofer going in once the theater room is finished.