I have purchased multiples of this Kingdel model and other models as well.  All of them have been reliable.  I did have one unit that developed a problem a few months after purchase.  Kingdel has been very helpful and flexible in handling a replacement for me and I am very satisfied with the ease of getting my problem solved.  I would definitely recommend this mini-PC to anyone looking for a reliable product with good warranty support to back it up if needed.Noel HonigsfeldMolokai, Hawaii