
I'm somebody that has bought a sofa blind from the internet, never having tested or even seen it in real life and, spoiler, it didn't end well. It was uncomfortable to sit on and the fabric felt rough, even though I paid a pretty penny for it. Lessons learned.
That was a long time ago now, and I've since owned, and sat on, a lot of great sofas, including one of the best John Lewis sofas I think there's been over the years. While I moved on from it for a slightly more contemporary color, said John Lewis sofa is still going strong, some six years later, in the lounge at my mother-in-law's.