I'm thinking of listing a few of my guitars there. Want to try and sell locally first and then if that doesn't work then go the Reverb route. A few friends I have (I have more than a few, but only a few that play guitar ) have had good luck with them. With the economy rebounding it start looking up, but with the big box stores having problems they are pushing guitars out at rock bottom prices with 0% financing.
The Epiphone is probably a better guitar than the Strat and more collectable in the long term. The build quality of Mexican made Fenders from that era was highly variable and the pickups sounded dire. The PRS on the other hand is likely to be built to a better standard and possibly worth a straight swap.
Most of the retail shops are going to offer you - at max) about 40% of their used valuation. They want to make sure they get PLENTY of markup. They offered me $1500 on an OM-28 in new (and I really mean NEW) condition at Guitar Center.