Best on the market, but expensive. Though a little goes a long way.
Very smoody and very fast delivery
Always works good.
Best lube out there? Possibly and for sure the best I have used so far. Recently I purchased a different brand and my wife just mentioned to me this morning that we need to go back to Astroglide as it was a better lube and she enjoyed it better. Hey, I listen when it comes to which lube my wife prefers and it is her that I'm using it on. If your wife has tells you that this is the lube she wants you to use, then by god you better get it.
This works better than KY, and is also easier to clean up afterward.