You can't go wrong with the pistol you bought, and you got a fabulous price. Read the manual online at Ruger's website -- it will tell you how to adjust the trigger overtravel. There are almost as many aftermarket parts for Ruger pistols as there are for 10/22 rifles. The Volquartsen target sear is a huge improvement, and Marvel's target trigger is the best of the bunch, IMO. I have both in mine, and as others have noted, accuracy is very good.
GRIMJIM noted that full disassembly and reassembly is tricky at first, but you'll get the hang of it -- be careful to keep track of the pins in the grip section. A tiny bit of thin tape on both sides of the frame will hold loose ones for you. Full disassembly is required only to install the sear and/or trigger, to make trigger adjustments, or maybe once a year to get the last bit of grime out of the frame.
I hope you enjoy your Ruger as much as I have enjoyed mine.