Agreed the last 10 minutes were good but it was mostly a very low key buddy movie with few highlights, the Di caprio character wasn't particularly likeable so I found his professional and personal tribulations all a bit meh and the part where Pitt's character fights Bruce Lee was corny and disrespectful to Lee's memory and work, very poor form from Tarantino who drew heavily on that work in his earlier movies. Pitt as always performed solidly though, in fact it was frustrating not to have more of his back story which was alluded to in snippets.
All in all a bit of a self referential naval gaze I thought.