To be honest, this Windlight release doesn't improve my Windlight experience. It's much more harsh, there's more glow, as in "where are my sunglasses". But, that may be a problem with my graphic card. Pastrami Lindens' advice is to intall the latest ATI drivers if you have an ATI card, but unfortunately these drivers are not yet available for Lenovo ThinkPad T43 laptops with ATI Mobility Radeon X300 graphics cards. So, these issues may have to do with my old drivers; your mileage may vary!
Btw, this version of Windlight is the first one to be based on the 1.19 release, which contains some changes to the UI as well.