Speaking during a break from training with the England Saxons, 28 year old Simpson-Daniel admitted that the whole negotiation process hadn't been easy but that Bryan Redpath and the club had been massively supportive throughout.
"Gloucester really showed me how much they wanted me to stay. It's a fantastic contract they've offered me, it really is."
"I'm incredibly thankful to Brush for the role he played. At time, he's more of a friend than a coach to me. He didn't chase me every day pushing me for a decision. He didn't do that once."
"He texted me on the day I went out to France to wish me luck and did the same when I got back to ask me how it had gone. He's been completely down the line."
"It would have been very easy to try and bully me into making a decision but it's actually been completely the opposite."
Although he made his Gloucester debut in the 2000-1 season and is currently enjoying a testimonial season, Simpson-Daniel is arguably at the peak of his powers and the other offers he admitted were tempting.
"It was a tough decision because myself, my family and my agent had to discuss things very openly between ourselves and come to the right decision."
"We had to consider, of course, the rugby side of things but also lifestyle and the financial aspects."
"Everything was taken into consideration and I had constant conversations with Brush throughout the process and he actually gave me really good advice because he's played in England and France."
"But it was one of those things that it just felt totally right for us to stay. As soon as we made the decision, we knew that we'd done the right thing."
"Our hearts were telling us that we wanted to stay and, as soon we committed, it felt absolutely right. So, we're thrilled."
"It's been a tough decision but, funnily enough when it came down to it, it was an easy decision and the right one to make for me and my family."
And, with his future now settled, he's glad that can now focus on the future with Gloucester.
"I'm very excited about the next three years to come. We're really making headway under Bryan Redpath, there's a great feeling around the club and the players, and I want to remain a part of that."
"We've still got a great chance of hitting our top-four target and pressing for league honours this year, and beyond that it looks even more exciting, as the squad continues to get better."