This was another season 2 episode that marks the average zone.
This episode had a clever plot, but adding Jimbo to the fray was the worst idea they ahad. Jimbo is a horrible character, they shouldn't put him in the plot.
Now, the humour was "decent". It had very few moments and quotes, but still lacked in the laughter zone.
This episode also gave us something new... South Park in summer. Which you will never see again and its nice to see a change in the background.
However, even if this episode has many flaws. Its still a episode that you could re-watch many times.