I feel like he was very good below welterweight and was a decent contender at welterweight. If he is just judged on his 147 achievements yes he is underrated.
Yes. He’s remembered too much for becoming a brawler/declining fighter post Mayweather. He was a skilled boxer with good length in his mostly forgotten prime.
Yea Robert had a very nice run prior to his welterweight days. His best win at 147 was Berto. Other then that he beat Martinez and Kamegai (in a good fight). Loses at 147 were Floyd, Thurman, Garcia, Peralta (which was not a good look) and Figueroa Jr. So for me, below welterweight yes he was underrated. At welterweight not so much
Underrated by....? Hard to tell, seeing as no one really rates him, nor talks about him. But back in the day, he was a favorite of mine! He had the skills to box, or he could brawl. He was tough, but just didn't have the biggest punch. I oft wondered if moving up too quickly was the issue. Oddly enough as well, all his division titles, like 4 weight classes(?), he's never been the recognized division world champ of any.