Jack Stacey tucked home in excellent fashion from Andrew Shinnie's inch-perfect ball, before James Collins converted from the penalty spot after Danny Hylton had been tripped.
Jones said: "I am delighted. I thought we controlled the game well. It was important to get the goal which we did. These are a good side, they beat Middlesbrough in midweek. They've got a Championship squad, they haven't lost many – maybe one or two. So it's a real good result for us, especially how we managed the game, how we controlled the game and we nullified them to very little. I thought we weren't at our most fluent, but I thought we were excellent and it's another fantastic win.
"We're in good form, we're in a good place. We keep saying it – the first three games we took one point from nine. Our form since has been phenomenal, on any other season, you'd be well out in front. We've probably got more points than we had last year at this stage. But to have 47 points from 23 games is an outstanding haul and we're very pleased. We're in good form, it was a tough introduction to the league as we've repeated on about ten occasions now. But we have really sort of adjusted to the level and we're in very, very good form, we're in a good place and that's excellent."