The blu-ray nail in the coffin for me is the need to update my systems firmware to watch the ever changing format coupled with the fact that over 90% of my Netflix bluray rentals always had some serious glitch during the best part of the movie. Maybe it is my POS Sharp player but after about 6 months in I changed to standard DVD format and have no problems...
As to the quality of your Sharp blu-ray player I can not say,I own a SONY 550s and although it is, relativly speaking, an older player, there have only been 3 frimware updates for me and I am grateful for every one of them. On the positive side, you can update your Blu-ray player and that is an outstanding advantage; Sharp is standing behind their product and it sure beats having to buy a new player.