I started a thread on the topic (might have been one or two others)
Basically, it came down to the town's "new" permit requirements where we live that forced us to do work AHS would not cover. AHS also uses Goodman for replacement parts, we have Carrier units, and they wouldn't do a "like to like" replacement, even if we paid additionally for it. And they wouldn't let us dispute the costs, even after the Building Inspector said for our case we didn't need a permit (but he recommended one; he said about half of the contractors do, and, most good HVAC contractors would pull one)
They would give us a check for the equivalent Goodman coil, but, their cost was about $300, and we'd already paid a $125 service fee.
In the end we paid the $125 call out, plus $1558 in non-covered charges. All other estimates we got for a Carrier coil were higher than that (significantly).
Some of the non covered charges went to exceeding their limit on refrigerant (about $250). Some went to "new code" requirements that made sense but seemed crazy expensive (float switch $178)
The rest of the charges went to a new drain pan ($235 - which we might have incurred with a Carrier coil/new dimensions), Locking caps ($75), Mastec ($264), drain line ($348) and the mother of all charges: a $30 permit cost us $178!
AHS policies weren't perfect, but, in the end, the HVAC contractor is the one that told AHS what we HAD to do per local permit requirements, and AHS doesn't have a process to challenge the cost; we were paying the bill and not them (LOL).
At the end of the day I'd compare the following for coverage:
1. Itemize everything they cover outside, including:
- well pump
- detached lighting (gas lamps fall into 'no man's land' with AHS)
- outdoor appliances
2. Full list of pool items (controller?)
3. Replacement policy for all indoor appliances
- like for like (brand, finish (stainless)
- when do they choose to replace vs repair
4. HVAC/Mechanical
- like for like replacement
- do they have a contract with only one or many HVAC manufacturers?
5. Do they give you a cash-out option
6. Do you pay a service fee if they don't remedy the problem
7. When can you request a second opinion for a repair
- In our case with the HVAC, they wouldn't allow us to request a new quote from a different vendor, since we weren't disputing the diagnosis, only the cost
We've done pretty well with AHS. Our plan was to keep them around until we needed to replace HVAC and then likely drop the policy.
Now we know to shop around for a new company that allows for better replacement on HVAC when our policy expires if we choose to keep coverage.
But I doubt the other insurance companies' policies differ much for HVAC repair.
In the end, we've done OK with AHS. If I had existing Goodman HVAC in place it would be a push.