Just been catching up on this great story. Mostly this is thanks to the terrific characters you've created. The Icheb/O'Conner relationship is the most prominent parring here at the moment and you've done a great job of developing this conflict between two of the most important and prominent people on this ship. It's making this story an unmissable space opera you just can't stop reading because you gotta find out what happens next.
The damaged subspace and the Borg involvement make for a fascinating mystery which is bound to cause problems for this crew and for Icheb in particular. Like the poor guy needs more trouble at the moment.