Nigel Clough praised the Blades for their second-half showing in Saturday's 3-0 victory over Plymouth Argyle in the second round of the FA Cup.
After a first-half performance which Clough described as 'flat', the second-half saw three penalties, Rueben Reid missed for Plymouth before Jose Baxter scored both of United's after fouls on Marc McNulty and Jamie Murphy respectively.
McNulty then rounded off the win late on, applying the finishing touch to a inviting cross from the returning Florent Cuvelier, who saw his first competitive action in nearly 11 months after overcoming a serious knee injury, sustained on-loan at Port Vale in January.
Relfecting on the victory, the Gaffer remarked: "It is nice to progress to the third round again, but it wasn't easy, Plymouth made it hard for us, they came and give it ago and we were flat in the first-half.
"But having survived the penalty miss, the lads reacted positively and once Jose (Baxter) tucked away our first penalty the confidence that was lacking a bit, came back and was clear to see.
"We have no complaints about their penalty, all three challenges were penalties in our opinion and thankfully we got three long overdue breaks otherwise it could have turned out differently.
"Once we got in front we played at a quicker tempo with more freedom and in the end it could have been more than three, we created several chances and Jose should have had his hat-trick.
"It was an important win and it gives us something to build on at Fleetwood and beyond that into the hectic Christmas schedule."