Definitely seems interesting; it uses a different protocol as not to directly compete with their other products but it still kinda does given the features. Maybe they will retire the GT3B/C lines? I like how it uses the $400 flagships cell phone holder bracket. It looks to have tank mixing in the menu whereas the NB4 doesn't (you have to configure the mix yourself) and that was considered flagship at some point. As long as it's not built has cheap at the GT3B was, it should do well.