If you are politically in tune with the agenda of the far left, ( to find out what that is check out the Socialist Party website) you will think [Soros] is great.
This is ridiculous. If you look into the many projects that he sponsors around the world, you will find that he has always been an opponent of authoritarian regimes, including the post- and neo-communist ones in the former Soviet Union and, previously, Southeastern Europe. As a result, his mainstream-liberal politics have made him as fiercely hated by the various leftwing authoritarians around Eastern Europe and the former Soviet Union as by their nationalist conservative and far-right counterparts. (The two often make common cause in fact.)
Basically, the national conservatives consider him an American Zionist stooge of Western, atheist, liberal cosmopolitanism, and the postcommunist populists consider him, well, an American Zionist stooge of Western, capitalist and imperialist cosmopolitanism.
As an illustration of the consequences, employees of Soros organisations are sufficiently at risk for travel policies to countries like Belarus, Russia and Uzbekistan to be very restrictive.
Since the same kind of antipathy-from-both-sides goes on in much of the countries he works in in Asia and Africa, that puts Soros squarely in the centre. The radical centre, if you like.
On a sidenote, the equation of Moveon.org with the (practically defunct) Socialist Party in the US is off-kilter as well. I am aware of the tendency of American conservatives to label everything left of Lieberman as "far left", but there are clear differences between the liberals of Moveon.org, not to mention Media Matters, and proper socialists.