He hasn't achieved much or anything of what he wanted to achieve, so from that perspective he was not a very successful President. But then it was a lesson that a President without a compliant Congress has little real power to achieve much. And his Democratic party in Congress is so scared really push a progressive agenda that there is almost no way any democratic President can hope to have a compliant congress even if the Democrats hold a majority in both houses, and even a fillibuster-proof majority in the Senate.
Ironically Republicans should probably see these last 8 years as a success. So while they have been opponents of the president they should consider that he's been successful for them by being unsuccessful for his own party/ideology.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
