All the comfort of using cruise control with more driver control. I personally don't like cruise control as I like to ease to a stop and let off the throttle gradually, but the trigger finger wasn't the most comfortable to use.
Safety wise - both hands can now hover over the brakes. With the trigger throttle, I had to get my finger off and around the throttle and to the brake (hard to explain and sounds easier) but now I can brake instantly.
I personally have my throttle and display so far to the left that I can't fold the handlebars. I never need to. Others may be comfortable with the thumb throttle closer to the grip, but I needed it as far as it could be ergonomically perfect.