I used to play a little bit after I was already happy with Blockland, but I quit because it was too confusing. How are kids that are much younger than me supposed to figure this out if I can't plant a brick without either tipping it over or crashing the game.
I also agree that the weapons are ridicules. The rocket launcher reload time is like thirty seconds, and you don't even have to be facing someone to shoot them. You just move your cursor behind you without even turning around (moving your cursor behind you should turn you around in the first place).