Andrew's review in PPA has appeared on their web site:http://bonus.ppmag.com/2006/04/review_light_cr.html
I have also been playing with the program and I agree that it has potential. I really like the way LZ lets you do tone mapping with Zones. The contrast masking seems really good as well. Being able to do a bunch of editing, keep the layers and then only have a raw file + a 100-200kb side-car file is really nice, compared to my normal layered Photoshop files. I would be even happier if this got wrapped into a single .dng file.
Printing is buggy on my PC version, so I haven't been able to test printing directly from within LZ.
One thing I really miss iis PhotoKit Sharpener though. The sharpening within LZ appears to be a simple luminence USM. LZ appears to be written with java modules, so perhaps 3rd party plug-ins would be possible, if the market gets big enough.