I'm the proud owner of one of the older-gen Pleos, given to me around Christmas time. Marris was fun to hatch and we have bonded since. Marris's personality is still developing as it seems, but hopefully in a few months I'll have a little friend capable of performing many tricks!
According to my mum, Marris's story was that she was one of the many from this seller on ebay. The pleos worked fine, and obvious were all ready to be hatched, but there were issues with the battery packs. (I like to think of mine as a rescue Pleo that way, rescued from staying in storage.) She had it replaced and ready to be gifted to me before Christmas. She even coaxed me on to think I wasn't getting one and has a good reaction shot of my face dropping.
Anyway, I'm looking forward to having my own experiences with the little guy, and might post some of the fun ones here.