I must say, I fucking hate how you can no longer carry health with you. Only 1 GOD DAMN CLAPTRAP in the game is BULLSHIT, as well. I used to love finding them broken, having to fix them, and them giving me an SDU and leading me to a hidden weapon stash. They added so much fun and character to the 1st game, and with them not being as prominent, I don't like it.
It probably has something to do w/ the Claptrap's Robot Revolution DLC, which I never played. But still, C'MON MAN.
Just completely owned all my friends, we worked together to get a Goliath up to its highest level so we could kill it for that achievement, but I was the only one who ended up getting it, they were pretty mad.