NO! Parking at the visitor center is beyond awful. I have a Class B motorhome (van conversion) with an extended cargo carrier on the back, making the whole rig 26.5 feet long. I had a very hard time finding parking.
Also, they are very anti dog there. I had to beg a ranger to let me walk my dog on ground adjacent to the cemetery parking. Now I realize letting a dog pee and poop in the cemetery or the hallowed ground where the battle occurred is beyond inappropriate. But next to the road where the only thing hallowed is where the snowplow is used, come on!!!
The visitor center is overcrowded and poorly presented. The introductory film is excellent, I understand, but they only show it just a few times during the day. Very anti-visitor policy. Custer is portrayed as a hero and a victim of Indian brutality. They "forget" that Custer was in the Indian's home land that they occupied for centuries in an effort to eliminate them. Only as an afterthought is the Indian's side of the story just barely mentioned.
Don't waste your time. There are several great local museums that I found while traveling there.