"Yep," Laynie agrees, A spell nexus, except the most powerful ones, isn't likely to have anything as wowing as Twinning a spell or reducing its incantation to a mere instant, but they are generally thought by many among Medibarian wizards to be more versatile and generally useful. One thing that they do that metamagic rods do not is offer spell storage so that a wizard can swap out prepared spells for the dweomers that have been given a resonant affinity in the nexus's own spell matrix, much like a Ring of Spell Storing, albeit less easily-available to those who aren't attuned to the arcane."
*Laynie turns to Vanitri.*
"I'm all out of juice--do they have any candy here?"