Will it be brachytherapy with hormone treatment or on its own? If with hormones, how many months / years are they planning that to last?
Generally, for a low grade contained cancer, brachy is as successful as external beam radiotherapy or surgery but as you say, for most men the side effects are significantly more manageable. The side effects of HT, on the other hand, can have a significant (albeit mostly temporary) impact on quality of life. We do have one member who really struggled with pain after his brachy but I don't think the medics were ever able to come up with an explanation for that. Like EBRT, brachy brings a very small increased risk of additional cancers some 15 / 20 years later down the line - I think the risk increases from 2% to 4% or something like that. Brachy was our first choice but my husband was deemed too young - I am aware that many hospitals do offer it to younger men now.