I have to admit that I had an awful time trying to type with my two thumbs on the 6 Plus with any kind of speed. I just couldn't find the right grip. The phone just seemed top heavy. (My daughter did not have this problem.) Yesterday evening, I just decided to find a grip that was comfortable for me. After 20 minutes, I finally found the sweet spot. In combination with the auto correct, I can really type fast and accurately. I love this phone, all over again.