Fret ends are good actually, is the stocking test that I can slide a silk stocking along the side of the fretboard and not have them catch?
As for added value, it's taken me 3 days to do all 22 frets - prep, wax, setup press, glue, press, wait 10 minutes, cleanup, prep... If I added $160 to the value, think I should report myself to the authorities for working for less than minimum wage! More seriously, the fret action and tone of this guitar is really nice and I've ordered some D'Addario ECG24 Chromes flat wound strings, Jazz Light, 11-50 for it; I put the old strings back on to test the action, raised the bridge a tiny bit, and all my buzzing issues have gone away. The new Tusq nut is supposed to arrive this week and I will fit that, polish the frets, and do a final clean up when that's all done.
I never tried flat wound strings before but I'm only an intermediate player right now, been learning for just over 6 months but practicing twice a day.
It's really bugging me as to who the original manufacturer was, apart from the loose frets and the clearly botched nut, the workmanship and parts quality on this guitar is good. I am not at all sure that it's Firefly. I am pretty sure it's an ES-335 copy but feel free to tell me if I'm wrong. Maybe this was out of the Gibson factory? (I can dream). I tried to follow the text of the original advert but that's probably BS; they had the fingerboard radius wrong.