i found the p89 to be rather large, and heavy. i also hated the way it recoiled... felt very strange. didn't care for the trigger, though on a da/sa, it isn't likely to find a truly great trigger.
the gun was, however, very reliable. my cousin and brother in law both have beretta 92's... we went out shooting, and the p89 never had a hiccup. it may or may not have hit a target, but it didn't have any troubles. both berettas had troubles w/ jamming, but at least they hit the targets... oh well.
i sold my p89, and don't miss it a bit.