Picking a good lube can be tougher than it sounds. On the one hand, I'm glad that there are people out there taking the quest for the perfect lube seriously (James Joyce makes an appearance).
I think that these people might be taking it a little too seriously. I have not tried this lube; at $23.99/125 ml, I don't think I can afford to.
I actually haven't. Numerous people have suggested that I watch the movie, but almost every time it has been suggested, someone mentions "the butter scene". I would feel weird watching the movie just for that scene. I'll get around to it one of these days. However, I am in that particular group of young men who started to go through puberty just as the internet became widely available, so I have in fact seen several "butter scenes" but in shall we say, "off-Hollywood" movies. Butter seems like a poor choice for a variety of reasons, especially if it's a spur of the moment thing and one is not at home; I think it would be all too easy to accidentally use salted butter.