Full-timer unhappy with Extended warranty issues

So I am not happy with the results of a recent repair and the portion that Good Sam ESP is providing. I am a full-timer and have been without a home since Monday. My inverter burned up - nothing was going through it and took it to the local CW for a repair under the GSESP. GS would pay to have the inverter repaired, but, according to the CW service person, it would take approximately 10 days just to get the part in. And, to make it worse, the charge for this was over the $500 deductible - $600+. Because we would be waiting for a part, hotel reimbursement would not be covered, even though we are full-timers. So, we opted to get a new inverter, paying the difference in the price (even though the old one burned, a new one was not an option for ESP. Even spending one night in the RV in the CW parking lot, we still have had to spend 2 nights in a hotel so we can have water and power (it is hot in Florida and unbearable because of the sun/heat).
So it is better to put the almost $300 each month into a savings account and pay for repairs that way, or pay the premiums. I will have to think long and hard before I renew the policy. I do not know that I will recommend to anyone buying this policy. RV parts are not kept in stock, so there will always be delays if the repair is more than just tires or batteries, so GSESP keeps making money and putting us out. I thought GS stood for Good Samaritan??? Not so much, it seems.