Leader of the delegation, Mr Santiago Fisas, gave the commendation after holding a closed door meeting with the outgoing President in his office.
The five man delegation was at the Presidential Villa to congratulate Dr. Jonathan for allowing a peaceful electoral process and conceding defeat.
The group, which came to present the preliminary report on the outcome of the elections, said that the fact that President Jonathan conceded defeat saved Nigeria from degenerating into chaos as predicted by many pessimists.
The meeting with the president lasted for about 30 minutes before the Chief spoke to State House correspondents congratulating him for exemplary display of statesmanship for the entire world to see.
The leader of the observer group said that many political watchers never expected that Nigeria was going to come out without bruises following the elections.
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