"We were competing with a French team that is right at the top of the Top 14 and our pack were magnificent. Our half backs controlled the game and I have to give special mention to Paddy Jackson," said Humphreys.
"He came in for a bit of criticism at the start of the season, some of it unwarranted, and people forget he is still only 21. But against two of the best teams in Europe over the last two weekends he has shown he is an outstanding international out half.
"No more 'potential', he is at that level. The directed the whole game for us - he is the controller out there and he made sure we were playing in the right parts of the pitch. It was a huge performance and a huge result for us."
The victory kept Ulster two points clear of Leicester Tigers at the top of Pool 5 with successive victories and puts them in a great position to shoot for a third successive quarter-final slot.
"Someone quoted a stat before the game that of our first 25 games away games in the Heineken Cup we lost 24. Of the last 11 we have won eight," added Humphreys.
"More than anything else that sums up the difference in the squad of players we have, the belief they have and the quality they have. We very much believed that if we came out and imposed ourselves up front we could win.
"Going into the back to back games against Treviso we are in a good position. Played two and won two - you can't do better than that."