In your opinion Is the UN reputable?

... complicated issue but "sort of".
They have become the lapdog for ALT LEFT Liberal policies, fail to discipline countries engaged in the active invading of countries, severe human rights violations etc; states like Iran, China, Russia, Pakistan, Venezuela, Cuba, many countries in Africa, while hammering the west particularly the USA for anything past or present. Their hypocrisy is a bit stifling at times.
On the good side they are a potential an actual force for peace, standing guard around the world helping to enforce peace and promote stabilization of war and dissaster ravaged zones. The United Nations has tremendous potential for good it just needs to be de-politicized and return back to the political middle abandoning political correctness and acting in fairness and justice for all.

In the beginning, the UN had some good ideas and worked toward the benefit of all. Now, it's an impotent political boondoggle with no legitimate focus or concerns...a money pit if you will. There are those who say we should get out of the UN and save our money...and I agree BUT (and there always is one) I believe we should tell the UN to pack its trash and find a new home...outside the US but we should remain in the UN...you keep your friends close and your enemies, even closer.

Ed, as in any political environment the primary concern is overall power. Unlike their original humble beginnings of working as a unified entity to prevent global war, sickness and acts of inhumanity, they have evolved into a global network of self-righteous, socialistic, progressive, liberal idealists whose only ambition to build personal wealth and prestige at the expense of the global community. Take for instance the Woman’s rights council of the United Nations. Leading the counsel is an Islamic nation (Saudi Arabia) notorious for suppressing the same rights they are suppose to upholding. Or the political posturing of invading the sovereignty of independent Constitutional countries in order to bring them one step closer to globalization controlled by the UN. Case in point: In February 2013, Barack Obama without coordinating with the U.S. Congress, and acting on his on behalf, made a commitment with the United Nations Office for Disarmament Affairs (UNODA) announcing the creation of a “Civilian Weapons Confiscation Study Group” (CWCSG) intended to foster the goal of facilitating the passage of “National Laws” in member nations to “Disarm Civilians”. Barack Obama enrolled the United States in this program as a member nation without Congressional approval. This pact unknown to the American people, has been quietly recruiting United Nations Disarmament Officer’s (UNDO), to occupy American cities and towns which Obama designated as uncontrollable areas and has ignored the U.S. Constitution and the 4th Amendment and looked upon it as a minor infraction, authorizing the United Nations to eventually occupy heavily populated cities such as Chicago, New York, Los Angeles, Miami etc. and to forcefully if necessary, begin confiscating civilian weapons. The undermining of a nations sovereignty and constitutional declaration is irrelevant to the UN’s quest of global control. So, as to answer your question of being a reputable global body the answer of course is NO!