Indeed very much reminiscent of ango on the nose, as well as taste wise, at least for my tastes. Looks like an excellent and most importantly a cheap alternative to regular bitters.
I'd say it's lacking in mouthfeel and aftertaste compared to Angostura for that, but it might be interesting trying to swap half of the Angostura in Angostura-heavy cocktails like Trinidad Sour to see how it fares.