I own two of these games and am thinking about purchasing a third.
Out of these games, I had to exchange one due to not working; Then a month later I was sent a replacement by the manufacturer. (The light kept going off and then back on.)
So otherthan that, I have used the two that work well all the time and have not had any problems. I take one with me every where I go;
I play solitaire until I am tired enough to sleep and if I wake up at night and don't fall back asleep.
I am hooked! And even quit playing other hand help video games for solitaire!!!