As stated in the Episode 1 review, the real test of quality for the game is based almost entirely off of whether you dig the Penny Arcade humor or not. It's a good game sans the humor, but the writing will either make or break the game depending on your tastes.

Return of haiku
To review Penny-Arcade
The second chapter

Five dollars fewer
For the team’s new adventure
Thankfully cheaper

Game presents same theme
Victorian glow, crude jokes
Returning castmates

You don’t need the first
Second stands out on its own
A few nice links, though

Repetitive scenes
A problem from the first game
Return yet again

So many backtracks
Somewhat annoying at times
Moving on, a pain

Improved visuals
A bit more gloss overall
Wonderful artwork

The script delivers
Comedy is found throughout
Writing saves the game

Combat retooling
New special-move minigames
More obvious cues

A fairly short game
A welcome respite from Fall
Many games, no time