I am from Australia, so things might be a little different here, however some things are fundamentally the same - women & their bodies.
I had my hyster and a&p repair with mesh (6 weeks ago) all at the same time, because it was anticipated that if I didn't have the extra support of the mesh, I would most likely re-prolapse within a short time after.
The mesh has risks, however, as you experienced not having mesh has too, as you are now facing another surgery.
So far, my mesh has caused me no problems what so ever.
I have no sign of erosion or infection of any kind. I did have some significant pain issues within the 1st couple of weeks of surgery, but honestly I don't know whether it had anything to do with the mesh per say, or just the fact that I had such an extensive operation. Pain meds sorted the pain out without a problem though.
I had my surgery in a leading Australasian Hospital that specialises in women's health. They used a splinting device (a Vaginal Supportive Device, VSD) inside my vagina for 4 weeks after the surgery. It was stitched in however with disolvable stitches, and it was removed at 4 weeks post op without a problem. The device supported my stitches and more importantly the mesh in place while it 'took'. The device and the new kind of mesh that comes with it claims to reduce re-currence rates of prolapses by some huge amount so I hope that will be true for me too.
This is my experience with the mesh, and I have to say that I am only 6 weeks after my surgery. However so far so good, and I am happy to have my mesh and bet on its wonderful attributes.
I hope all goes well for you.