Testosterone blockers, without HRT - effects?

I may have to go on T blockers and wondered how much of an effect they'll have without progesterone  / oestrogen of similar, sounds like they can result in breast growth and fat relocation to the hips, educed body/facial hair growth, softer skin - all good things as far as i'm concerned! Anyone had experience of this (it's therapy if my biopsy result's not too scary, rather than chemo or surgery if it is - fingers crossed!)