pretty great ability, it's a nice slow start up but the speed is off the charts, and mastery of it can allow you to fly past anything, and it's just great to have more abilities added to Metal from his other games.
My favorite thing to do is to use this along with Revi(character rebalance) so he has the spark hover, the air dash, then add the spark field, and cross momentum for the effect changes and you have a super well equipped metal monster that can reach blistering speeds, feels like you are controlling the CD and OVE version of him.
But on it's own it is just a nice extra ability to have, I think mapping it to it's own button is a massive improvement for the Lua, again makes more versatile.
Only really issue is that with models he's doesn't actually have the correct animations(or any at all) when using it, so he just power slides to victory.
That's all I can criticize for, and it's a issue I don't think is a major one.