It sort of makes me wish that this technology was far enough along when they filmed Solo. No one wanted a Han Solo movie where they recast the titular role, thus it was a box office bomb.
If they had been able to do this though and actually creatively film an entire movie where Harrison Ford looks like he did around the time they filmed A New Hope though? That's something that would've been an attractive box office draw. Instead it just feels like we got a cheap knockoff Solo film.