It's quite an old model. Traditionally, Peaveys were always regarded as being tough and reliable, but heavy (they're very much old school amps). If it isn't making any nasty noises, it should serve.
If you are inexperienced, take someone with some knowledge with you when you go to look at/try it. Don't buy online, untried or unseen. And don't over-pay. I've just done a quick Google and they were selling used in around 2012 for $150 or so. Ignore talk of "vintage", "rare", etc. They're just old.
You may want to move your post to amps and cabs. It's in PA set up and use at the moment.