I think it is usable... but I find it uninteresting.
I couldn't put my finger onw hat I don't like, but it's too emotionless (if that makes sense) to me. It's a sound, a word... nothing too great but nothing aweful.
In all honesty, it reminds me of connolis the most.
I like Nell-names too (and I even love
Nelle as a whole), but I would go for something more recognizable but bold, like:
AntonellaPenelopeAnnelieseCorneliaJanelleHanneloreGianella
NeldaPetronellaPrunellaMignonelle
etc