They're a real pain, I'll be honest. We have a great deal of luck from what I can tell in terms of feedback - perhaps one in 50 gives an issue within warranty.
The only issue that really occurs is with the seam around the centre - as such we found the best material we could to strengthen it (a steel epoxy resin which is specifically formulated to bond well with plastic) and applied a nice, thick band of it around the middle.
You can grab a pre-strengthened one here from us:
https://www.dmgrs.co.uk/products/re-...5-v6-pem101050
It's not the prettiest solution in the world, but certainly seems to work.