It took me a lot of messing about to get the new wall closure feature working properly. This is partly because wall closures necessarily have a complex relationship with walls but I think the main problem was that Plug-in Options are tucked away in a contextual menu. And many of the problems I see people having with wall closures (and plug-in object offsets) also relates to the discoverability of Plug-in Options. I've even seen people say they haven't seen the Plug-in Options window before.