Originally Posted by
hcrick I've noticed the same. I kept comparing them for a month and Cortana's estimate was (surprisingly) more accurate on a consistent basis. Took a while for me to fully trust Cortana after being such a long time user and believer of HERE, but I've switched over full time now and don't bother checking or comparing. I still love using HERE Drive offline voice turn by turn navigation though.
Yeah, at first I was skeptical about Cortana's suggested routes since they were ones I didn't use before but after I actually followed the directions I found that it was indeed faster. I've since deleted my routes from HERE Drive+ commute and just been using Cortana.