I have had a biceps tenodesis on both arms...one was with an interference screw into the humerus and one was a soft tissue attachment to the subscap tendon. While I know that some people on this site have considered the recovery from this surgery harder and more painful than a slap repair both of my experiences with the tenodesis surgery and recovery have been relatively easy. The immobilization was for 6 weeks with a standard sling (none of that abduction pillow craziness!). The biggest part of the recovery is taking it really easy in terms of not lifting weight in that arm to give the bicep a chance to start healing into its new insertion site.
I had tenodesis done at the same time as my slap tear, so I can't tell you how the healing is just for that. But, I do know my recovery was delayed a bit in terms of resistance and weights due to the tenodesis part.