Joining Harlequins would be a good move for Jamie Roberts, according to former Wales lock Gareth Llewellyn.
"Jamie obviously wants to play at the highest level of club rugby, in the European [Champions] Cup and Harlequins will offer him that," Llewellyn said.
"I loved my time at Harlequins, I had a great four years there."
Llewellyn, capped 92 times by Wales, played for Harlequins from 1996 to 2000 and is sure that Roberts, 28, would also enjoy playing in England.
However, Llewellyn does believe it would be a shame if Roberts - capped 69 times by Wales and three times by the Lions - opted not to come back to Wales after quitting France.
"We'd all like to see Jamie back in Wales playing for a Welsh region and it will be slightly disappointing if he does go to Quins, but he'll have his own reasons for doing that," Llewellyn added.
"I'm not sure whether it has something to do with his medical studies.
"But I'm sure it would be a good move for him. South west London is a beautiful part of the world to live and I can't speak highly enough of the place."