Another thing I noticed from the article was that the improvements to the U/I are not always improvements. E.g. the set-your-own pricing option, it's nice to b

Another thing I noticed from the article was that the improvements to the U/I are not always improvements. E.g. the set-your-own pricing option, it's nice to be able to do either way from a single line edit, but there still has to be an affordance provided to the user to let them know that it's even possible to enter a '+', and that adds clutter. Likewise with merging the opt-in email option to the combo box... by leaving it blank instead of explicitly saying that the client won't be spammed you may lead to anguish on the part of the user, as they now have to figure out whether the entry is blank because of a software bug, to signify that the client will receive a "default" email, or whether the client will receive no email at all.