Curious what differentiates this from Hinduism. Generally speaking.
Well.....for one, the identification of being Hindu for a Hare Krishna and conversely the identification of Hare Krishnas as Hindus often brings up a little "turmoil." Some are more tolerant of this label than others, shall we say?
Also it kind of depends on what type of Hindu you're talking about. Now, generally speaking, Hindus like the Hare Krishnas are monotheistic with some pan/polytheistic sympathies. Generally. There are honest to god Pan/Polytheist Hindus. The differences might be more akin to nuances or variations though.
But Hare Krishnas often reject the label of religion, whereas many Hindus may view religion as a binding Dharmic action. (I mean this in the sense that many Hindus believe they are obligated to follow the religion of their parents out of respect and duty. To varying degrees of strictness. Some follow the school of their ancestors, others are allowed more freedom.)
Now the ISKCON movement is oddly regarded in Hinduism.
On the one hand, their devotion and dedication to God and meditation is often highly regarded by many Hindus, earning them quite a bit of respect from many circles.
On the other, the emphasis they place on Krishna and their actions as a congregation might earn them some "sidelong glances." It's sort of tentatively viewed as part of the Hindu family, though don't be surprised if you encounter a Hindu who regards them as cult like or as a group who distorts (slightly) the teachings of Krishna.