I have the slightly smaller Chernobyl with a couple custom tricks and spectra grid fabric. Best climbing pack I've ever owned, period. Over the past 10 years, just off the top of my head, I've owned (and climbed with) Cilogear 45L and 30L, Osprey Mutant 38 and Variant 37, BD Instinct, Marmot Eiger, and I'm sure a couple others. The CCW trumps them all. I was in Chamonix for about 3 weeks earlier this year with it and it performed beautifully, even with ungodly loads as we skied off the Midi with food/gear for 3-4 days of bivying on the glacier. Side note: Skiing in climbing boots with a fully loaded pack sucks hard, no matter what pack you're wearing.
[youtube]http://www.youtube.com/watch?v=6rySE8XiT1s[/youtube]
I'm having a highly customized Ozone being made up this summer as well as soon as I can devote the cash to it, already spent 45 minutes on the phone with Randy discussing the various options.
One thing I'll say is I can't get used to his reversed shoulder straps (On a stock CCW, you pull
up to tighten). He seems to like them an awful lot, but they aren't for me. I'm having the Ozone made with normally tightening shoulder straps and will drop off my Chernobyl at his place when I'm up in NH later this year to have the Chernobyl converted to normal straps as well.