Youko is similar to Tara in 2nd edition. Tara had to jump through a lot hoops and actions to get somewhere not very special. Some people would win tournaments because they have unlocked a specific trick, but the vast majority of players lost their games and had a bad game play experience with her. Youko will be in the same position, i think, for 3e, some people will do good with her but most players should skip her as she will most likely lead to frustration.
Also we have lots of evidence that Wyrd will leave weak models and masters alone, as they have other problems to worry about; like creating an entire new faction.