Is my riven good?

[Piercingchill]

So i unveiled a riven about 2 weeks ago, a dark split sword riven (before you guys say anything i only use dual sword) for it and i rolled it just once to get new stats (the stats before the first roll were absolute garbage, im talking about +impact +channeling efficiency +dmg to infested bad) and i rolled once to get 100.8% crit on slide, 8.5 combo duration, and 102% electric damage with a negative modifier, -87.2 status duration, is this riven worth keeping because it seems pretty solid to me, or should i keep rolling and maybe have a chance for a better one at the cost of my kuva? Thank u v much