From the bottom of the pot to the top of the plant is about 83-85cm or so (~33"), but a good third of that is pot. From the top of the soil up it's maybe 55-60cm (22-23")tall, I'd say. No topping, just grew it as it came out. This strain seems to love to branch out a lot so there didn't seem to be much need to top. I just tied out some of the branches a bit to help it expand and give the buds more room when they grew.
I did mash the tip of the main cola about a week ago, though - accidentally tipped the pot too far and she crashed into the wall. No damage, it seemed, but the tip of the cola, I think, got bent or cracked because the top has gone all mutant on me and is growing half sideways like the tower of Pisa or something, lol.