Neil said: "I'm extremely satisfied that I've managed to deliver for people who it really, really matters to.
"That for me is the most important thing, because it's been tough at this club for the last few years."
'I’ve always had confidence'
"It was such a challenge for us. I’ve always had confidence that I could come to a big club and do the job," he said.
"But to be brutally honest, you can only ever do with it the backing of the fans, who have been incredible, and with really good players."
Before taking a sip on a can of beer, which he later admitted was his second one, he added : "Listen, I'm never one to be dancing around or any of that.
"People think I'm miserable, I'm not, I'm just content!"
Discussion needed with hierarchy before new season
Now Sunderland are a Championship club again – and with the jump being so big in terms of quality between this division and League One – it is apparent Neil will need to strengthen his side in the summer transfer window.
He admits that conversations will need to be had with the club's top brass before the start of the new season.
Neil has also recently been linked with the vacant Burnley job in recent weeks, a side whose Premier League status will be determined tomorrow.
He said: "It was easy for me coming here because I felt that with the squad, I could do the job.
"When you're going up to a new level, it's very different.
"There's got to be work, investment and different facets that can make you competitive.
“If you're doing a job, you want the tools and I'm no different.
"That's where we're at."