Lance and Albert were over the top, but to me it was clear they were intended to be that way, so for me, it worked. I was laughing out loud at times, especially just the little random details from each separate point of view. For instance, Albert's comments about Lance's hair. I've got to say I've wondered that too--Robert Pattinson's hair in particular seems to widely coveted but he looks like he got his hair styled by a 3 year old.
Overall, I really liked it, though it didn't really strike me as horrific for the most part.
The parts I didn't like:
1. The magical "growth" formula seemed so out of place in the setting. I'd just assumed it was just a total crock, especially since his friend only TOLD him about how it worked, and he had not actually seen it himself.
2. The grandparents situation was annoying, and not in a good way. Like a Ben Stiller movie where every innocent comment is guaranteed to be taken the wrong way by everybody.
3. Genital mutilation--this is one of the few things I get really squeamish at. Most of the rest of the story I wouldn't mind listening to again, but I don't think I ever will because of this.
4. Why in the world did Albert go back to the undy drawer, apparently forgetting that he'd dumped the rest of the bugs in there? In every other way he tended to be rather paranoid, why wouldn't he remember a vital piece of info like that?