Not really, no. But when people start busting out "low level ascension" and "pun-pun", it's going to catch my critical eye.
Notice that I didn't.
Someone mentioned pun-pun, there was also the claim that this would grant enormous power at level 1 -- what can I say, they caught my eye on my first skim through?. Anyways, here I am now.
In any event, I think there was a mis-understanding on my part with respect to known spells. I remain convinced that level 10+ spells aren't possible without epic feats, but being able to cast 9th level spells in 1-3 levels with an ability score of 19 is about as good as it gets for an early entry ascension plot. There are a few problems I'm having with the current plots:
1. Are we really using the idea that Arcane Manipulation slots magically become slots available for sorcerers/beguilers/or bards? I think the fact that the slots disappear when you prepare your spells again STRONGLY suggests that they are wizard spell slots. There is a difference between RAW and blatantly ignoring context. The sarrukh can grant any ability imaginable and the context supports that. Here the context strongly suggests that the spell slots belong to a wizard.
2. I'm pretty sure that spells known to a beguiler or warmage are not spells known to a wizard and cannot be used to fill wizard spell slots. It'd be as crazy as saying one could fill arcane manipulation slots with divine spells just because one looks at the sentence that says spell slots and ignores the rest of the paragraph where it talks about doing this while preparing wizard spells. And no, arcane preparation doesn't magically turn a beguiler/warmage spell into a wizard one. If it did, then a straight beguiler would have no place to put a prepared spell, since she'd have no wizard slots to put them in.
But anyways, as long as you're making the spell craft checks to put high level spells into your spell book, and you're filling wizard spell slots with wizard spells you should be good. 9th level spells at 1st level is pretty hawt.