Hair Implants

My hubbie is 66 and very self-conscious about their hair loss. He is not vain in any other field, but in this, it really bothers him. We discussed her implants - do they really work, how long she will interrupt her and continues. My question is addressed to someone who had actually implant themselves or know someone who has had close - all the pros and cons - and also, what they usually cost. Thanks! I want him happy, and if this would work, I would do whatever it took to get it done for him.