First off: this rating only applies if you already have Exalted 3e. On its own, this is, at best, 3.5/5 for having cool ideas, but lacking the setting and system behind it makes it rather more meaningless.
Ixier is a weird ghost thingie that got made from the collateral a whole bunch of people created. you can probably read that in the image, which makes up about 2/5 of the total pdf. You've then got Intimacies, roleplaying hints, and advice for putting Ixier in your campaign, followed by full stats for the creature.
Ixier isn't going to ruin a combat-capable Exalt's day without some help, but if you wanted to do that I guess you could bump its numbers up if that was your intention. Instead it has a really cool theme, goal, and general demeanour.
It has 3 new Charms, one of which has the Eclipse keyword. All of them are unique, and make this creature a quite new thing in the world of Exalted.