Jimenez Arms bought the machinery from Bryco Arms, which used to be Jennings Arms.
The Jimenez JA-22 (same as the Jennings J-22) is a little rougher in the action. Once you get the pistol, give it a good cleaning, keep it fairly oiled, and keep a good grip on it. It does not recoil much, but any small amount of momentum wasted from a slight limp wrist may cause a short cycle (not much mass in those tiny slides).
Also, these pistols work best when using 40 grain solids, such as CCI Mini Mags.
"TRAIN WITH WHAT YOU HAVE, NOT WITH WHAT YOU WISH YOU HAVE."