I shot one in 45 and liked it. Lots of firepower in a small easy to conceal package. Check fitment of the gun if possible before you buy it, I have seen Para products vary quite a bit over the last year or two. Some are built well and some are pretty sloppy. I think the Para compacts in 45 are a great package, but not the 9mm models.
If I were to get a 9mm it wouldn't be a Para, there are smaller lighter packages for the 9mm with the same capacity. If I were in the market for a compact or sub compact 9mm I would look long at hard at the Glocks available.