For me, they're the most overlooked neckthru there is. Built in Mississippi with typical Peavey solidity, interesting pickups/electronics, good hardware. They seem to somehow feel very thin, depthwise, not nearly as thick as a bolt-on. Like all Peaveys though, they take a beating resale-wise, so IF you're in the MM for a lot of money, you won't see it back when the time comes to horse trade the Cirrus. It's amazing to me just how much Peavey most guys have in their past, but act like they don't want to admit it later ! I've always been a huge Hartley Peavey fan, a real 'straight, no chaser' kind of guy. My kind of guy. Amazingly, T40's sell now for more than they listed for in the late 70's, early 80's.
I have no doubt about them as axes. But . . . I'd try it, see if you like it, that comes first. If you don't like it, there's your answer. If you like it and the money seems OK, go for it. MM's seem to really be strong resale-wise at this time, maybe just not in your locale.
J o e y