It was one of the worst Macs every built. Very unstable, hardware often went bad - a crappy experience for those of us unfortunate enough to buy them. Their suckiness was especially unfortunate as the 5300 was the first PPC laptop.
I had one of these suckers, too, and I'm pretty sure I bought it in 1995. It's consistently rated as one of the five worst Macs ever, and it's deserving of that. Apple was great about sending it back quickly when I had to send it in for repairs, and they even finally replaced my original with an upgraded model that was less crappy, but owning it still sucked.
I finally learned how to solder that fragile power supply socket back on myself...
September 20, 1995: PowerBook 5300 Recalled for the First Time
August 25, PowerBook 5300 Introduced