Windows: Initial impressions of 1.6...
 

Some features that I like that are new:

1) has an option to not confirm quit each time.
2) preference window is fixed.

Some "features" that I don't like that are new:

1) selecting an upload in uploads window is almost impossible.
2) downloading enumerated files not allowed, because they are too similar.

Also a small nuisance with the installer...

I installed LimeWire to the "D:\program files\LimeWire" directory, but the launcher tried to access "C:\program files..." path for the VM, so all I had to do was change the drive and then it worked ok.