Let me start
with Guitar Nut replacement. This is cheap and easy upgrade
and you will see notable difference right away.
Original Nut on this guitar is junk in my opinion. First of
all, it was way too high, and second issue, these slots were
too wide and too deep. Junk. But this is not big deal. You
can get brand new guitar nut for $10 and this is fairly easy
to replace. However you will need to sand this off to height
you want, and this is going to be quite challenging to keep
this 90 degree angle and flat surface, but this is doable at
home :) By book you want 0.010" on Low E Side and
0.006" on High E Side. You can experiment with these
numbers. I also did fretwork; fret leveling,
new radiuses and fret polishing. If you don't have right
tools you can bring your guitar to your local guitar shop and
they will do it for you for about $200.. and in my opinion this guitar is worth this investment.
After all upgrades, this is one awesome guitar, you just can't stop playing :)