The hotel was much better than excepted! I don't know what they don't have a higher rating considering that it's much much less disappointing than any of the others hotels I visited in Bali which were supposedly "amazing" but turned out to be so lousy.
Tir Na Nog offers very functional rooms (free drinkable water, I don't mean the little bottles, I mean the whole tank!), a lot of TV channels which really work! Wifi really works too, what a surprise. And suprisingly, even being in the center of the action, the rooms are not so loud and I could barely hear the music from my room. Also the great news is that for the first time in Bali, my stay was not ruined by little children running around everywhere, shouting and invading the pool! Thank you Tir Na Nog!!!