I feel that Glance is very nice option. It's handy to quickly check time and notifications. Could be user defined which notifications will appear and some popular ones could be added like suggested on other threads.
But, when placing phone on stand in car, screen facing towards you it is annoying in night time when Glance goes on and off.
There are different time senttings, but seems that timer is not resetted when phone shakes on stand. Instead Glance goes off and on quickly and you notice that on corner of your eye.
Some improvements could be done. Glance could detect that if phone is long enough at certain tilt angle Glance will be constantly on. Or there could be slider to adjust sensitivity of movement detection.