I've had some for about 6 months.
Build quality is okay and they are not as noisy as I expected (with a bit of carpet underneath). One gripe is that the locking mechanism tends to slip a little on occasion, though only by a few mm, so not really noticeable in use.
As for training - mine only got serious use when it was snowing/icy/couldn't-be-bothered-going-out. With a maximum of 1 hour at a time. Nowadays I use them to warm up a little before going out.
Being conical, the rollers are pretty easy for beginners (like me). It only took half an hour before I was okay on them. The downside is that eventually they've become a little too easy and are approaching the same level of boredom as a turbo trainer
On the whole, for a first set of rollers, I'd buy them again. Mine were £94 from
ribble in one of their sales.
