@Scudder, you nailed it. My advice is don't ever buy anything that's been through the private equity strip mining process. No doubt they've been buffing the numbers (likely fraudulently) for the past 1-2 years to pump this IPO, but the truth is that anything of value in this company was stripped out, sold for profit (to Apollo), with the carcass of the company loaded with as much debt as pension funds were conned into buying, and now they're looking to unload this turd to a greater fool before it comes crashing down.
The reason they're doing the IPO now is probably because they can no longer keep the numbers looking good and/or the debt is about to blow up this whole thing soon, so they need to get out now.
That sounds harsh but study after study has shown that companies exiting the private equity realm significantly underperform their market peers. Anyone buying into this IPO, be prepared for "surprises" to come out in the next year or two, and likely a bankruptcy filing in under 5.