He has banters with all Bioware NPC's and a friendship track as well.
He has some crossmod content with Neh'taniel but only if Calin is installed after Neh'taniel.
Calin has a serious issue with thieves and his comments through the game are harsh, but he has a reason for that. He will romance female thieves but he will ask the PC to make a sacrifice for the romance to happen... if the PC has the thief stronghold.
IF the PC is a thief, but doesn't meet the romance requirements, he will leave the group if you accept the thief stronghold.
Calin has content for both Shadows of Amn and Throne of Bhaal.
This mod is designed to work with Baldur's Gate II: Shadows of Amn with or without the Throne of Bhaal expansion pack.