I've been using the newest version of Cura from Ultimaker because it gives the option of a gradual infill. One of the biggest benefits I've noticed is the remarkable decrease in print times. For example, Cura for Robo estimated a time of 1 day, 19 hours for a print, and the same item with the same settings in Cura 3.0 was 17 hours and 27 minutes. I'm not super knowledgeable about how slicers go about identifying print times, but I printed in both settings and the times were very close to estimates and the quality of the prints were the same. Just thought I would share the info with the community!