Bear in mind I'm only a couple of hours in, and I wouldn't describe myself as a LR genius either but here's some screenshots that might give you some ideas:
Screen Shot 2015-07-22 at 10.55.10 by
Alex Small, on Flickr
You can organise your catalogue in a variety of ways.
Screen Shot 2015-07-22 at 10.53.19 by
Alex Small, on Flickr
It feels like the noise reduction
may be better than LRs. This is the palette for that anyway. This isn't the best image to be checking that with, and I'll come back to that. Probably later today.
Screen Shot 2015-07-22 at 10.52.17 by
Alex Small, on Flickr
Making adjustments to the geometry of the image is a little more comprehensive than LR, I feel. Certainly feels that way.
Screen Shot 2015-07-22 at 10.52.05 by
Alex Small, on Flickr
Now, the colour handling - it's much easier to get into specifics with Capture One than my experience with LR. The results also feel a little more refined than I've seen in LR.
Screen Shot 2015-07-22 at 10.51.52 by
Alex Small, on Flickr
This was, by far, the most interesting thing for me. Three way colour correction - similar to grading software for video - that allows you to subtly alter the feel of your image. Really interesting, and I can't think of anything in LR quite like it, that's as simple to use.
As I said, I by no means regard myself as a LR expert. It does a great job of handling my normally large file loads after I've shot an event (like Kinky & Quirky) and I've got literally thousands of images to get through and make sure there's some sense of cohesiveness to the collection. I probably wouldn't use Capture One for that right now, because I'm not certain how to apply some of my usual things as a batch.
That might change.
As far as metadata, tagging and so on, well, I've never been one for adding that. I normally set up a catalogue for each shoot, give it a meaningful name (date, place, event) so I can come back to it later. So far, that's worked for me.
YMMV.
So, for jobs like portraiture, or the more arty stuff, I can absolutely see myself using Capture One. For the massive jobs where I more or less want to set up a broad set of corrections and apply that to a load of work (fine tuning later) then LR is great.
Of course, this may well change as I get into Capture One. First day with it and all that.
Hope that's of some help.