I've got an Ultra X2 550W that was given to me after my old PSU blew up. So far, it seems fine, aside from the fact that the fan spins up loudly without any real load. It's good to see that they are in fact improving with the modular cables - on my unit the SATA power leads are connected to the PSU with SATA connectors, and those things are a bugger for staying in. It seems every time I open the case one of them comes loose and I lose either a hard drive or the DVD drive.
Not sure I'll be eyeing up Ultra though when I upgrade in a couple months. Corsair have my eye, especially given recent events and the fact that they guarantee it won't blow up
Btw what is the cross load test? I know it might not be indicative of real-world, but it is worrying about that -12V rail being 11.4% out.