Entertaining? Yes. Exploitative? Also yes.
This is a pretty tense, well crafted thriller (albeit a little overlong). However, much like the attack it is based on, Hotel Mumbai adds up to little more than a whole lot of pointless murdering.
Given the political climate surrounding Muslims in so much of the Western world, I really don’t think this was a tactful choice of event to dramatise...seeing as any depiction of these particular events is going to find it hard not to reinforce a lot of negative Muslim stereotypes. And this one barely tries to be tactful.