I missed Strong Belwas, too. Hope they´ll somehow include him later as he´s a pretty cool character. Otherwise the episode was rather slow, but I guess with the extra time it won´t be too bad. Visually the episode was a bit mixed, to be honest. Astapor didn´t look as impressive as I´ve imagined it and the Unsullied looked rather cheap. They reminded me a bit of warriors from those cheap 90s TV shows, like Xena or Hercules. The Westeros scenes were pretty good looking, though and I´m waiting for more scenes of the North!
Season 3 and 4 will have some pretty cool stuff coming, so I dearly hope they won´t f*ck it up!