So I've been using Concert Harp by ProjectSAM for a few months now. It's been an absolute blast to use--rich samples, close & ambient mic settings, multi-layered triggers, and keyswitches alone should warrant this purchase!
I've not yet been disappointed with any of ProjectSAM's products. I say this about few companies at all, but ProjectSAM has put out really innovative products in the past few years. It's one of the few companies that continues to put out VST's and VSTi's with no compromise in quality.
As a music composer, I find that the Concert Harp is useful both when blending with other, orchestral ensembles or in a standalone, solo harp piece.
Check out my video review on it: