I've bought this when it was released. I had the problem with the black screen, which meant that after I shut down the app, the only way to be able to restart it properly was to restart the device or clear all the cache. The update fixed that for me and I've not encountered a problem since. I also have no problems with the UI and the selecting of the cards or the text size. But to be honest I rarely complain about stuff like that. It doesn't bother me, I just get used to it, I guess. Anyway, I like the game and I recommend it.