Depends on your definition.
Basically, I think that Jehovah's Witnesses are the largest organized group of neurotic personalities to be found anywhere on the face of the planet.
In order to be susceptible to the blandishments of cult reasoning, one must suffer particular sorts of mental problems and negative attitudes, generally characterized by: alienation, isolation, desire for revenge, feelings of unworthiness, convictions of guilt and worthlessness, a desire to lose one's worthless life in something larger and on a grand scale. (For full details, see Eric Hoffer's "The True Believer")
There are "good" people in the JWs. There were "good" people serving as guards at Aushwitz and Bergen-Belsen. But basically, no, I do not think that any given JW is a "good" person. Read through the posts here dealing with people's experiences while they were JWs and experience the: backstabbing, the gossiping, the outright lying, the rejection, shunning, of one's own family members, the self-righteousness, the holier-than-thou attitudes, and above all, above all of these things the one most common identifing characteristic of any given congregation of Jehovah's Witnesses - the utter, total, and complete lack of love. The very thing that The Master said would be the identifying characteristic of his true followers, the love for one another, is totally missing, not there, empty, kaput, false, phony, and utterly destitute.
Good? I don't think so.