Well, I'm fairly new to solving cubes and recently I made the move from solving the cross on top to the bottom and all I have to say is wow! I have reduced my time by at least 30 seconds. I was averaging 1:45 - 2:00 minutes, which I know is pretty slow, now averaging 1:00 - 1:15 just by switching methods. Next I'll be learning 2LOLL and 2LPLL from BadMephisto's website. After that I'll probably start learning F2L. Then full PLL and OLL. That's if I don't get caught up with work.
All I wanted to say is that I found it pretty awesome how much time is reduced.
Thanks for reading this far! :tu