I'd say its rushing a bit. Remember, a PS only guarantees you a seating within 15 minutes of your reservation time so you may not be seated until 815. Its been my experience that about Ohana's is a little slower than most character meals. Having said that, if you get to the parks a little later still do Ohana's. IMO, the characters and wait staff are probably the friendliest and most attentive you'll find in WDW and the view of the Magic Kingdom is wonderful and sets a good tone for the rest of the day.
Have a great meal!