Based on the EBay description these are shipped directly from China. I'm not sure how the legal system works over there but I'd rather not chance it.
As for the reliability compared to a non-SSD Hard Drive, the SSDs take the bumping and jarring actions much better than a regular hard drive. Also, you'd be hard-pressed to find anything on an A1200 that would require more than about 4 GiB of drive capacity anyway, plus the filesystem doesn't support booting on a partition bigger than 4 GiB due to Kickstart limitations. If you want a hard drive that large, you'd be better off getting an alternative hard drive controller rather than using the on-board one for an A600/1200.