I got to handle Springfield Armory's new XD-E.
Overall impressions - its a nice, thin, and small hammer-fired pistol about Walther PPS in shape and size and quite similar in overall size to the Glock 43.
The double action of the XD-E is decent and the single action is similarly not bad. Reset feels decent when dry firing it. The ambidextrous magazine release with a matching button on both sides is a pretty neat trick.
For people wanting to appendix (or otherwise) carry a small firearm with a hammer for safety while holstering it may just be an ideal solution.