my 3rd fav arc atm, the arc is epic, just because it has a down (like pretty much every long arc) doesn't mean it's not great, for me the down were the tournament blocks, most of those chapters were boring but the rest of the arc is either good, great or epic
the only really ''negative'' part of this arc are Oda's breaks, which I do not mind in the slightest, all I want is that the Arc is great when I pick up its volumes and read it like it (and every other OP arc) should be read (real paper, pages and in one go)
not to even mention (aside from all the crazy epicness in DR up until now) the best part of basically every arc in OP is the end, teh climax and the wealth of info we get after it (what I want to see most in this arc atm actually isn't Luffy v Mingo but a conversation between Sabo and Luffy)