I do have a S470, without the maple top, but I've never played the EC-1000. So I'll just tell you what I like about the S470.
+ It stays in tune like no other guitar I've played (with a tremolo)
+ I love the neck
+ It's light
~ The Pickups are relatively good, I dig the neck pickup, replaced the bridge with a dimarzio evolution (see
this blog post about more details).
- It doesn't have much sustain on the high strings
Speaking of the quality, I can only say that I haven't found a single flaw yet. The factory setup was crappy tough.
The S470 is imho a great shred guitar, the ESP seems to be a great choice for riffing and heavy stuff.
- Jonas