I bought the AJ-100 which is the Jumbo version of the DR with a cutaway, just to learn how to setup an acoustic. (setup all my electric guitars/basses since I was young). The fitment and finish on this guitar are unbelievable There is not a blemish anywhere and the wood grain is positively beautiful. Tuners are very smooth and once the strings are stretched, it holds perfect tune. The fretboard is good, frets on mine are dead level, but need to be polished as they are a little rough when bending strings.
It does not come setup from Epiphone so YOU must do it yourself (which is why I bought it) or pay someone to set it up for you-unless you like very high string action and a bowed neck.
I set the neck perfectly straight and ground the saddle down until I just started to get a bit of string buzz when plucked hard. The neck and fret level is so good I ended up with a tad under 1/16" (3/64ths) action which is amazing for any guitar. I put Elixir 12's on it and it now plays exceptional(blow on the strings and it sings as they say).
It also sounds as good as any acoustic costing many, many hundreds more, so I put a GraphTech Tusq nut and saddle on it, and installed a Martin t4 pre-amp electronics. That amazing sound is now even better through an acoustic amp or directly into my digital recorder or computer(audio interface needed). For the price of the guitar, the Tusq parts, and Martin Pre-amp/pickup, I have an acoustic that looks and sounds amazing for less than $150. And since the finish is beautifully flawless, I figured it deserved an Epiphone case.
I cannot possibly say enough good things about this guitar that cost under $100.