I bought my Toyota for the motor, so I didn't pay a lot of attention at the time of purchase. I wish I had though. Entune is absolutely terrible. I'm still mind boggled that a quality manufacturer like Toyota would allow such a terrible piece of engineering in their vehicles.
Panasonic makes them, which made it click for me. Both Japanese companies, both titans. No betting on scrappy startups.
But I agree, I bought mine for the motor as well, and really that's what's important to me. Would I like a better head unit, sure, but I'd make the same choice again.