A helpful advice from good players ) irelia )

hey guys what's up all ? how are u doing ?? I hope the new patch didn't make u angry cuz it did a good job for me in this hehe..... so I am looking Forward to but a new ad champ for top .... do u recommend me to buy irelia ? is she that good ?? cuz I know outta first hand experience I played some irelia players and they kicked my butt .... what is her counters ?? any helpful tips ?? ty very much