I have an EQ6 with the synscan and now an EQMod also.
There are a few problems with the synscan but I have found it extremely accurate and able to put an object in the eyepiece every time.
Important points:
A reasonably accurate polar alignment helps. I use the polar scopewithout the main scope on the mount. I then connect the scope and then align the scope with the axis of the mount by looking through the eyepiece whilst gently rotating the telescope, let the clutch off and move the scope til the stars just rotate around in the eyepiece the scope. This aligns the axis of the scope with the mount. I then use the finder scope or the main scope to find the little L shaped asterism of the southern pole and move the scope to centre this. The end result is polar alignment within a few arcmins. The entire process takes less than 5 mins.
Orient the scope vertically and balance it as well as you can.
Turn on the synscan and set the time, timezone and coordinates as accurately as possible. One problem I had was that the hand controller didn't like accepting the time as +10 hours and would change it back to -10. It is worth skipping the alignment function the first time, go into the settings menu and check it has remembered the correct timezone and position. If all is correct, turn it off and start again. It will come up with the correct info the next time. It took about 10 goes before I could get it to remember +10.
After setting the time accurately select a 3 star alignment.
You don't have to accept the first choice it gives. It will choose 2 stars to one side of the meridian and a 3rd on the other side of the meridian. Try to make the first 2 widely spaced and on different hour angles. The 3rd doesn't matter as much as it will be on the other side of the sky anyway. I found that the first star is usually in the field of my finder. This is mostly determined by the accuracy of the polar alignment and how close to vertical you started the scope. After centering and syncing on the first star the next 2 should be on the filed of a low power eyepiece. The 3rd one might be off a bit if your scope has significant cone error (not very parallel with the polar axis of the mount)
Hopefully it has accepted your choice of alignment stars and comes up with "alignment successful"
After this I found the goto to be very accurate except for aiming at planets. It seems to not work out their positions as well as stars or deep sky stuff.
If you connect a planetarium software to the mount and use it to slew to objects then the accuracy doesn't seem to be as good. I think this is because of differences in the coordinates used by the synscan and the planetarium software. I think that the synscan uses epoch2000 coordinates and doesn't update them for the current date where the planetarium software does. This gives a little bit of discrepancy with the gotos to named objects.
Best of luck with the new mount.