I rather liked my P345 but not enough to keep me from trading it away one day. Of course, that was true of almost everything else I ever owned, gun-wise. I don't really understand people's dislike of things like loaded chamber indicator (although you can just look down the barrel instead), magazine safety and stuff like that. However, the P345 was not the ultimate handgun, even if it was still a nice gun. For one thing, it had a surprising number of springs, compared to other handguns. It may have been considered relatively complicated and expense to manufacture, although that does not necessarily translate into any bad faults in performance.
Ruger doesn't make guns for which there is a real need but rather for which there is a real market. That's probably why there's no No. 3 single shot in their lineup anymore, although for the life of me, I wonder why they decided to make some No. 1 rifles in .303 British. I guess the reason is because someone like me would buy one, if only I had the money.