Looks - The perfect mix of Krillin and #18!  You can definitely tell that she's their offspring.  Blonde, no nose (she gets one in GT, though.   It's a Magic Nose!), pretty, and has a fairly good fashion sense.

Smarts - Hard to say.  Sadly enough, I haven't seen this character enough in GT to make any judgements.  But considering #18 is her mom, I'd say she got her smarts from that side of the family (sorry Krillin!).

Personality - Silent and reserved, but nice and sweet.  A "girl next door" type o' gal.

Fighting Skills -  Amazingly enough, as the daughter of Krillin and #18, she doesn't fight at all!  Looks like you'll have to protect Marron quite a lot!

Special Abilities - hmmm....looking cute?

Competition - Many fans like to speculate that Trunks could be competition (see "Links" section for character sites dealing with this issue).  However, I can't really think of any incident where Trunks would be romantically linked to Marron.  I guess that sorta thing only lies in the minds of fanfic writers.   I suppose she's up for grabs!

In-Laws - Krillin, #18, #17

Economics -  The girl lives with her parents at Kame House for crying out loud.  Marron's mom may love money, but that honey needs a REAL home!   You may have to convince her to get a job to try to help out her economic situation.

Sex - Normal.  She seems like just an average girl, so nothing odd should happen.  Then again, she is #18's little girl.  Maybe she secretly has some robot parts in her!

Overall - One of the more under-used characters in the DB universe, but that doesn't mean she wouldn't be a good catch!  If you're the kind of person who likes reserved, nice young ladies, Marron is the one for you!