I'd never ever use this on a girl as a full fn. It's strictly male and I think it shows. But yes, I like it, and I think it works just fine as a full fn. As long as nns are not too cutesy or terrible (Bumblebee-honey-poo whatever), I think it's sometimes fine to use it as a full fn, as long as it is fairly common. I think
Miro IS fairly common in Slovenia, and I like it!