Title.
Former Lightroom user, that was pretty convenient, and just about the only thing I miss from that piece of software.
I mean like when I'm tagging and inputing something like "Home", "Kitchen" and the software suggests e.g. "Dish", "Stovetop" based on the fact that those keywords have been used together a lot of times.
Otherwise I'm sure I'm going to forget to use certain tags that I'll need when I'm searching for pictures afterwards.

TIA, this piece of software is really awesome.