We have an L shaped couch, and Chloe had been cruising along the couch for a few weeks. She let go of the couch on the day she turned 7 months and took exactly two steps from one side of the couch to the other (from the couch side to the chaise). I nearly had a heart attack.
She was hooked. She kept doing this for weeks, and would let go of whatever she was cruising along to see how many steps she could take. She was much closer to 9-10 months before she was walking unassisted and closer to 11 months before she was running.
We had one walker, but she didn’t use it as one. She is a daredevil and was happier cruising and seeing what she could let go of and how far she could walk on her own.