Unfortunately, when I went to the grocery, they were out of lemon pie filling, so I bought cherry. It tasted okay, but 25 minutes wasn't nearly long enough. I'd give it at least 45 minutes, maybe longer, until the middle doesn't jiggle anymore. I had to bake mine twice. It comes out sort of spongy, but sweet and very moist. You can dust the top with powdered sugar if you like, although whipped cream would've been better.
I won't post the picture of the cherry. It was kinda ugly. The lemon version is prettier. I need to get the stuff to make it sometime when Mikey's home from college. He's a big lemon bar fan.