Sorry your first experience with it sucked man. It really is an awesome drug when used right. You must've done a lot to twitch like that. It's cool but fuck comparing it to E which is by far the best. I've done G a lot and it really is cool, you might want to give it another chance. It's one of the few drugs that you can feel completely comfortable on - at least for me. If you take a real light dose you might feel different about it.
peace, head