Works great. I replaced Little Snitch with it. I like it's simple interface and simple value proposition.
Did you purchase a Little Snitch licence?
I wonder why someone would go with LuLu if they've already paid for Little Snitch, when LuLu has fewer features.
"Objective-See", the name of the maker of LuLu, is a pun on Objective-C.
"Objective Development", the name of the maker of Little Snitch, is likely also based on Objective-C.