I had low expectations for this episode, but it had enough comedy with Ussop, Broke and the G-5 marines that I found it very entertaining! Also wasn't expecting the Law appearance at the end. The animation was great! Perhaps next episode will be the one that really drags, this one was fine.
If I had to guess, the viewers watching this who haven't read the manga chapters have found this arc very enjoyable thus far, anyone here? If it wasn't for the switching between each character's scenarios constantly it would be very tedious. A lot of people seem to complain that the beginning of the arcs drag, but really it's the battles toward the arc's climax that drag. Remember Enies Lobby, Impel Down and Fishman Island?
So about the pacing of the episodes with the arc thus far, they managed to go 1 chapter behind the 1ep-1chap pacing, there's a one week break, and then there is the crossover special next month.
So the anime is slowly distancing itself from the manga again, but then there's also the week break Oda is taking off, and I might not have counted the previous break. So who knows really?
BTW does anyone know of that chapter to episode guide someone made? It was a large list hosted on some website a while back.