Not a Bronie, but I do have a 8-year-old girl who loves it, so I have to watch it at times.
It's not bad, and kind of funny, in an 8-year-old-girl-would-love-it kind of way.
My 24 year old daughter will come home on weekends and watch MLP for hours with the 4 year old Granddaughter. They both love the Ponies.
She introduced me to the term “Bronies” a long time ago.
I to, have watched MLP with the Granddaughter when nobody else is around and she wants somebody to sit with her.