No, I did NOT walk out onto the glass floor where the children delighted in jumping up & down on. I did stand with my toes on the edge and bought a souvenier though :-)
This is one of the tallest towers in the world & well worth purchasing a ticket & going to the top. IIRC there was a specific time connected to the ticket so you'll know when you'll be speeding up the OUTSIDE of the tower to the top.
Very cool!