While I love her for giving me a Power Ranger with my name, the character of Jen leaves a lot to be desired.
Jen's character revolves entirely around the men in her life. Yes, she can kick butt, but she's not her own character. Even her leadership is questioned because the show is basically The Wesley Collins Show: Featuring Those Other Guys.
The very first episode has Jen's love interest, Alex stuffed into the fridge so that Wes can have someone to "fix" as the series progresses. There is way too much wrong with that statement. This is not how you write strong characters. Jen deserves to be more than just a broken toy that needs to be fixed.
Lets look at Jen's characterization, shall we? Outside of things involving Alex, Wes and her former partner, the only things that we actually know about her are that she likes martial arts films and can't cook. That's it. And those things were throwaway lines! I could name more interests for Lucas than Jen, and pretty much everyone agrees that Lucas had the worst character development on the show.
So, while Jen is a kick butt kind of girl that gave me a Pink Ranger namesake, I can't help but hang my head at how much they dropped the ball on her character.