I also have an Urbane (and a Note 8). Yes, messages for wear did get texts to my Urbane - for single party texts. No group text messages went to my watch. I loaded that app on my phone and watch from the store and it worked fine - for individual texts only.
This paid version of Informer Wear looks to be working for all texts - group or individual. The texts go to my phone via Message+ and then end up on my watch as an Informer notice. It also has an option to reply from the watch - I think maybe that's NOT working, but I dont care. I just want to read the text. If I want to reply I will use my phone.