Interestingly, Ebert.com, in spite of the negativity, had this to say...
Strangely enough, though, if you can put these considerations aside—or, I suppose, if you never cared about such considerations in the first place—“The Legend of Tarzan” is a pretty good action-adventure movie. Its narrative is refreshingly free of bloat, folding the Tarzan origin story into a series of relatively pain-free flashbacks that actually dovetail credibly into its contemporary scenario. The lead players, with the exception of the too-familiar Waltz, give appealing performances, and the action scenes are pretty tight. I am amused that somebody took the “Blazing Saddles” joke about stampeding cattle through the Vatican as a sort of inspiration for a climactic set piece, but I also have to admit the conceit works. For what it’s worth, “The Legend of Tarzan” is several unpretentious cuts above the pompous, leaden “Greystoke” of over thirty years ago. (I’m ignoring the 1998 “Tarzan and the Lost City” because nobody even saw it, let alone talked about it.)