I've been coming to Vegas a long time, and we always start our Vegas trips with either 1 or 2 nighs at The D or Downtown Grand, before moving to the strip. We are in our 30's which may shape our opinion differently, but I certainly do not mind the variation of tourists that Freemont attracts. Actually, it adds to the fun people watching factor, especially after a few cocktails.
I also don't mind the "performers?" in the circles...if someone wants to make an ass out of themselves for my entertainment, then let it be.
I do, however, loathe the panhandling, sleeping homeless people that line Freemont. (**This is totally unrelated to my personal feelings that the poorest members of our society definitely need our help in many ways. They are human beings afterall. HOWEVER, this isn't the place.)
The city needs to control this a bit more for the betterment of the area. That being said, we still start our trip on Freemont, basically because we love hanging out at The D, and bouncing around Freemont.