I've never stayed at the Fremont so I'm reviewing everything except the hotel division.
The Downtown experience's namesake is in a great location. Centralized on Freemont Street makes it the perfect for stopping in as you cruise up and down Old Vegas.
$2 Heinekens and Coronas 24 hrs a day at the bars inside mean I stop
in every time I go down town. The people who work the beer well bar obviously don't get tipped as often as they should because they are more than gracious with even a small tip. (tip them $1 for each beer on 2 beers and they will normally remember you for a while and make sure you are served a little quicker.)
There's not much to see inside and this place is pretty cramped because of how the floor is laid out. The food selection as far as places to stop in for a quick bite are really limited and not very good at that.
However they also have a Tony Roma's (You can tell this used to be their cafe) that serves a steak and lobster dinner every day from 9pm-11pm, which is a great place to stop in and take a break from the crowd, and unless there is an event there is almost always seating.
The gaming always seems pretty active though, and although I've never played table games here the craps pits are always 2 rows deep with players and onlookers, which livens up the atmosphere.
I usually don't spend a lot of time inside, I grab my $2 beers and head to the Nugget or Binions. Or just out for people watching.