Superbad worked fine in my BDP-S300. it took a bit long to load which was a pain in the ass but I just take that as being my owning a non 1.1 profile player.
I won't throw rocks at BD. However, that low end Sony player is super bad. No TrueHD, no bitstream audio for $400? Ouch. It has load times that make 1st gen HD players look bad.
In fairness to Blu, both formats need routine updates. Neither hardware can claim to be 100% bug free. However, HD-DVD users won't have to buy new players to play their extras in the spring.