In terms of his role during the Anti-Fascist National Liberation War, I'd say he displayed competent leadership.
As the leader of Albania, his record is mixed. On one hand Albania made great strides economically and culturally, much of this thanks to Soviet and Chinese assistance. However, he was wrong in characterizing the USSR and China as "state-capitalist" and "social-imperialist." His sectarian attitude toward them impeded the country's development and living standards. As his successor Ramiz Alia pointed out in 1991, "The results did no harm to the world. On the contrary, it was our country that suffered and whose difficulties worsened." His domestic policies also had much to criticize, such as the extreme measures taken against religion.
For all the Albanian condemnations of "Soviet revisionism," socialism in Albania was reliant on the continued existence of socialism in the rest of Eastern and Central Europe.
Hoxha is to be commended, at least, for condemning Mao's "Three Worlds Theory" which advocated siding with US imperialism against the USSR. But his alternative of "I hate everyone" wasn't much better. He still took absurd positions identical to the Maoists like condemning Cuban troops sent to Angola to fight the forces of Apartheid, and praising the Mujahideen for opposing the "Soviet occupiers."
* h0m0revolutionary: "neo-liberalism can deliver healthy children, it can educate them, it can feed them, it can clothe them and leave them fully contented."
* rooster: "Supporting [anti-imperialism] is reactionary. How is any nation supposed to stand up [to] the might of the US anyway?"
* nizan: "Fuck your education is empowerment bullshit, education is alienation, nothing more. You indulge in a dying prestige for a role in a bureaucratic spectacle deserving of nothing beyond contempt."
* Alexios: "To the Board Administration: Ismail [...] needs to be eliminated from this forum."