Great customer service from Amazon. My first delivered product was found to be defective and was promptly replaced by Amazon after technical visit. This product is value for money. Great picture 4k. Viewing the same in HD is giving totally different experience. Sound quality is also great. DTS tru surround sound with 20W output is enough to give great sound experience. You can also attach your home theatre to it to get Dolby sound experience. 2 USB and 3 HDMI slots. Will recommend everyone to buy this.