I really like this game. I think it is really well made. I only wish that different buttons would do different things (because sometimes "left" means to lure the fish, but at other times it is used to reel the fish (when using the left and right buttons).
Although that's pretty cool that the mechanics are very simple, it made me a bit confused at first about where to click.
I think it's a very Zen game and the sound cues make perfect sense - to cast the rod, to follow the fish when luring, to reel it back. It's a very good game.
Edit: Another thought: when looking at the almanaque, I can't really see a list of the fish? Maybe it's because I game overed? My rod shattered.