Vitor Faverani conducted an interview with the Spanish Celtics website CelticsSpa which you can see at the link below. My first impression of him is that he's a humble, likable guy. Hard to get too much more than that but here's how he described the workout process.
Of all the teams I worked out for, Boston was the one that convinced me more of the possibility of playing there. And it was because of the way they treated me. I was used of the way people treat you in Spain: they talk to you, they are kind, they are smiling, they make jokes all the time...and in Boston I felt home right away. They greeted me and from the first moment there is someone in the organisation, Austin, that talked to me in Spanish. We were talking for a while and then they treated me as if I was already playing for them. We did the medical check up and I started thinking that it wasn't normal that they were treating me so well. It was unbelievable. ' As for the workout itself it was great. It was very unstressful. There were several coaches watching me practice, but there wasn't any pressure at all in it. I didn't feel like I had to score the ball because they treated me so well that it was impossible to miss a shot, you see? I was joking all the time with one of the coaches about this and they made me feel comfortable and at home all the time.
He said he got a chance to meet fellow Brazilian Fab Melo but hasn't played with him yet.