I love Martha to. You're right, there are things that I recognize in her. :) I would certainly like to see Martha more often and I liked the scene with Beeman a lot too.
I agree with lilypoppy, I had expected a longer scene after all that hype. But still very funny. And also, they didn't match up! Alison is short than Matthew...
My theory is that it's because Martha and Clark, to a certain extent, are the only normal people on the show. Everyone is a heightened version of something. They all do things that wouldn't really work in real life, whereas Martha is just very real. She's not a superhero.
Yes, I think I like her because she's not a super-hero, but an ordinary woman, who doesn't even know that she's in extra-ordinary position. She just wants to love and be loved. I like that she's ambitious in exploring what she wants too. She's definitely not a doormat either. Like that.
We watch the show at work, and I can tell you that all the guys love Martha! :-)