Synscan will remember the lat and long, time, and date of the LAST time you used it. It WON'T tell you new settings. If you set up in the same place, all you have to change is the date and time.
GOTO alignment depends on alignment tar availability. Some you will need a star chart for, others most people know. I ALWAYS do a 3 star align, and I can get it done in about 5 minutes give or take.
Alignment is childs=play, so long as you correctly identify the star. IF you did a pretty accurate polar alignment, the star SHOULD be somewhere close. If your polar alignment is off, GOOD LUCK
The Synscan upgrade is covered by a 5 year unconditional warranty by Tasco IF you buy it in Australia. If you buy it overseas, it's up to the retailer if tey will honour any returns, warranty etc.
Good luck. I almost ordered mine from the UK, but reconsidered, as it was NOT much dearer here, andwith greater peace of mind.