Without reading the whole thread (for time constraints) I want to throw in my 2 Cents:
I've been playing an ibanez full-hollow artcore for about 8 or 9 years. It's been my main axe since I was a teenager, and over the years I've owned a lot of other guitars.
1) I think the artcores (and other vintage-style ibbys) are perfect in terms of playability. The necks are a medium profile- not horribly thin like other ibanez guitars, medium-jumbo frets, and you can get the action really nice and low. The only guitar i've owned that played better was my Carvin.
2) In terms of build quality, you are getting a monster of a deal. Yes, the hardware is cheap, but the fit and finish of everything else is perfect. Most of them come with binding on the body and neck, and the fretwork is excellent.
3) The hardware generally sucks. The stock pickups are mudbuckers, the tuning machines feel cheap, and the nut is plastic. For les than $200 you can get one of these guitars refitted with a new nut, nice new pickups, and Schaller locking tuners are a direct-replacement in terms of fit.
4) They have a sweet aesthetic
5) They ARE made in Korea, so you can't be 100% sure on quality control. Definitely only buy one if you've played it first and liked it.
Honestly, i would own 3 of the full hollows if there was a way to keep them from feeding back on stage, because i love everything about mine. If they start offering the AS103 in a wider variety of finishes i'll probably pick one up. the blonde just doesn't do it for me
In terms of tone, I think there's a science to finding the sweet spot. You gotta get the right combination of strings and electronics. Personally I've been tuning mine up to F# standard with 10's on it for almost 3 years, because it just came to life in a unique sorta way, and the DiMarzio PAF classics sound PERFECT in that guitar. I just wish they made a model with a single coil in the neck...