We come there often especially in winter months when the weather is too miserable to be outside, all the games have been played and the daily dose of cartoons has been watched. Our girls(3.5 years) love the fact that there is this ocean of books; they constantly pick new ones and we read them together. Then we play some game. A visit typically lasts for slightly more than an hour.
I think there are some books in Russian and Hebrew although majority of them is of course in English.