The synth soundtrack is actually pretty good, but the majority of performances are stilted and unnatural.
Action scenes lack impact, with CG muzzle flashes, CG blood spray, and generally shoddy presentation overall. The entire thing just screams low budget, but I guess the actors are framed and lit properly. Erm... That's about it?
What playability? Bloodshore is largely passive, with decision-making all too rare during a sub 2-hour runtime. Unfortunately, despite an interesting premise, it's all a bit boring, too.
There's some enjoyment to be wrought from Bloodshore, if only to see how the few decisions you make impact the story. Whether you'll actually want to take the time to bother, however...
Much as you'd expect – a handful of achievements to unlock by executing different choices during the narrative. It also demands several playthroughs, of course.