I'm ambivalent. On the one hand, Cantor is a terrible human being who worked to hurt a lot of people for reasons I find stupid and repellant. Even if he isn't a stupid bigot himself, he definitely pandered to stupid bigots to keep getting elected so he could keep sucking the dicks of the kleptocracy.
On the other hand, the guy who defeated him in the primary almost certainly is a stupid bigot, and he won by pandering ever harder to the stupid bigots that are now the Republican party's base. As unreasonable as Cantor as been as a Congressman, Brat will be even worse. Even worse than that, this scares the hell out of the rest of the GOP, making them ever more afraid to cut any deals that could be seen as "helping the Kenyan Muslin N***er destroy American and take away our guns". Even though, objectively, the Establishment Republicans have been beating the Teabagger challengers for the most part in this round's primaries.
Cantor's district when for Rmoney by a comfortable margin two years ago. David Brat is most likely going to win; I certainly hope he doesn't, but he probably is. While he himself will be a freshman, and thus far from the power player Cantor was, there's no shortage of power-hungry jerkbags ready and willing to take Cantor's place in the Congressional hierarchy.