The dealer rarely busts and hits a lot of 4 card 21s. When you double down with an eleven you rarely get 21 so its a bit slanted from real black jack. They need to address that the dealer in real blackjack does not alway make a number when they have 15 or 16. I will get an eleven and double down. I usually get a smaller card. The dealer will have a 5 or 6 up and turn a 10 or less which give him a 15 or so. He will hit a very high percentage of pay cards and never busts. That isnt realistic.