Hi I haven't yet had the experience of chemo, but many here have and most tolerate it reasonably well and even feel better for much of the time. The horrible "how long" thoughts come to all of us in the metastatic camp, but honestly, there is no one answer. Look at Allahays, he's well into his second set of chemo and has done very well (at least the first time round, I won't pretend the second has been easy for him), but I do know several men who have gone through it twice and have enjoyed many happy days as a result. I think we all know that the disease will catch up one day, but all we can really do is hope that day is far off, no point in worrying your life away.
I hope you get some other replies, I'm not sure why this has been missed by the team!
Take care and enjoy every moment, long or short, it's what we do and it has worked for us so far,
Love Allisonxx