the only fortunate part of an extended warranty from Lowes or HomeDepot is they do start after the original manufacturers warranty stops.....
most are a 2 or 4 year warranty.....increasing your coverage for about 5 years.....BUT read that fine print, cosmetic and adjustments are not covered....as well as parts that fall off, or break off, like a knob!
and as far as the ones I purchased, IF you don't use that warranty, meaning you never had a service call, you will get that money refunded at the end of the term......
the extended will cover for a complete replacement if 3 service calls are needed......again, read.....some just replace only if its the same repair 3 times, others are if you have any service call adding up to 3.....
I have had the GE warranty from Lowes.......as for the Calypso, they refunded full purchase price rather than fix the machine, not the sale price I paid......
for the window A/C, they offered to bring out a new one, or refund the money again, I took the money, again, I bought it at the end of season clearance....they refunded full retail price......
there are ups and downs to everything......just proceed with caution....