No clue about the .45, the 9mm is a great value (from what I know they are identical design wise). For 150-170 bucks you really cant get anything else with the same capabilities.
Single stack mag and hard to load ammo, very stiff springs when new.
Blowback operation (kinda heavy recoil for the caliber)
heavy and blocky
The one I shot I put a few hundred rounds through it, it did not like some of the ammo I used (dont remember what brands) but then again that is true of some pistols 5 times this cost so whatever.
They are good guns for the cost. If this is going to be your first pistol, I may advise to save up a bit longer and buy something else if the cons bother you, otherwise use that money on more ammo!