I thought it was a lot of fun, I'm really only familiar the Lone Ranger and Tonto through some eps I saw on TV as a kid, so I don't know how many liberties it took with the mythos. I'm guessing it was never quite so humour filled, but taken on it's own merits it is a fun action adventure that shares (for obvious reasons) the DNA of the POTC and Zorro movies.
Depp didn't play Tonto as a Native American Jack Sparrow in my view and I thought most of what he did with the character worked, while Armie Hammer was the perfect straight man foil as the heroic and noble Lone Ranger.
The plot is convoluted and none of the characters are really fleshed out, but the story weaves a decent adventure narrative with some fun set pieces and two likeable lead characters facing off against cartoonishly wicked villains.
The last 30 minutes is truly epic, the dueling trains sequence with the classic Lone Ranger theme triumphantly accompanying the action is one of the most satisfying action finales I've seen.
7.5/10