eco boost reliability?

My mother is looking for a convertible and has found 2 so far that are ecoboosts. First one was a 2019 but she didn't like the looks. I did ask around and heard some negative things about the EB. Just found a real nice 2015 but its also an EB. To top that off its a manual. She can drive a manual but she is 72 and would prefer an automatic.
But what are the thoughts on an EB? Any years to avoid? Anything to look for? She doesn't care about the power or the sound of a V8 so those aren't issues.

Turns out it is an automatic and she is interested...lol. just looking for any warnings/issues on the EB?

Thanks all. She is gonna pass. Her friend called his buddy that owns a Ford dealership and he said they try to avoid taking them in on trade cause of too many issues so she is gonna look for a V8