It can help a bit but it's not a magic bullet. You're usually not using that much plastic in infill to do a full purge, and the current implementation doesn't add more infill if there's more purge needed. Toolchangers stand to benefit the most from it since they only need to purge enough to prime the nozzle again.
There's also a side problem I've noticed with purge to infill, it's way less forgiving if your filament has too much colorant or you have your purge amounts wrong. Having a perfect print that had it's colors bleed sucks.
There's also a side problem I've noticed with purge to infill, it's way less forgiving if your filament has too much colorant or you have your purge amounts wrong. Having a perfect print that had it's colors bleed sucks.