I've stayed there several times and taken the ART bus and driven to the parking lots. Although it is theoretically within walking distance I would never do so unless I had no other option or I was only there for one day. People in general do an insane amount of walking any given day at the parks and to add on another mile is just crazy to me. From the hotel to the Best Western Park Place Inn which is right by the cross walk is .8 of a mile but you still have to walk to the entrance gates from there. I think it would be a twenty minute walk . . . if you aren't lagging from a long day at the parks. The only thing that I think would make it viable to walk for more than one day is if you are used to walking multiple miles a day, every day. That's my .02 for what it is worth. (Possibly nothing

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We will be there again in 13 days (woot woot!) and are planning on the ART busses. They can get crowded in the morning and the evenings but you aren't on them long and generally people are either in a good mood or so tired at the end of a day that they are quiet. Plus the hotel is the first pick up so you are pretty much sure to get a seat unless you chose to give it up for someone elderly or with a young child to hold on a lap.