PHi, own two korean JTV 69ers and play them for one and a half years now in a covers band as my main guitars.
The good:
1 The acoustic models are far better than the usual cheap tricks that other sims do, the sound is really good. Combined with the easy playing (no bigger neck, no bigger strings) it's just awesome. Ok, you need to play over FRFR mons, which I do anyway.
2 The handling is good, is like a strat, trem can take some action without detuning, volume keeps highs well when you roll back, tone control is good too.
3 Mag PUs are good sounding. No highlight, but good. Neck SC reminds me very much of a strat. Very good, maybe the best sound on it. Bridge HB is typical for a Strat with HB too, but I heard better sounds.....Ok, maybe not from real 7enders but from other types of guitars. Same for the other poisitons, good fenderlike sounds, but nothing special.
4 No batteries anymore, yeah! The Li-ion accu has power for around 15 hours or so. If it's empty the mag PUs still work, without any change of the sound. Great!
5 Modeling got improved a bit. Some presets for special tunings too, you can make custom tunes, even without the editor.
The bad:
1 Since you can switch between the mags and the modeling, you can easily hear, that the mags are more open sounding and have a better reaction on the picking. You can change the models to your liking using the editor and get some really interesting sounds that are good, but that are adds only, I usually play the mags.
Some sounds like muffled notes are still a bit unnatural, you have to play different to get certain sounds using the models.
2 When I got mine new, the balance of the mags and the models wasn't good. Volumes were not eqaul, some models were too bassy and lacking highs. I had to edit almost every sound.
3 When you use the special tunings, the sound gets worse, is it tracking, or would a transposed sound sound weird anyway? Don't know.
4 I'd prefer a higher frequency of the tone knob, touching highest highs only. Since this thing is a crazy computer I have been avoiding to solder a different capacitor in, which I for sure would have tried with a usual guitar.
Two more things:
Also tried the 59. The HBs sound great there, now there are the SC sounds worse. I had to decide which too take, they have each their advantages.
The 89 didn't hang right on my body, some how I couldn't reach the higher frets that good, belly vs. arm, too bad.
I'm still very happy with these guitars. They cover a wide range of sounds and my acoustic can stay at home since. But they are not perfect.
What else? Gibson Firebird X, Music man reflex game changer?