Re: KM with or without a chiller?
If I end up getting another KM, it will probably be a chiller. Regarding how much it is able to chill the stem, I'm curious as to how it is attached. Really the only word of caution regarding chillers is they raise the center of gravity quite a bit, so if you tend to be clumsy around your pipes, you may want to avoid one.
Also I've seen a few people say that ice in the base can lessen the flavor (not confirmed, would love to hear more conversation on this topic!), so this is the alternative way to cool your stem.