I have had the same experience with Gen3 and Opus, and because of that I recommed Sony (350 or 650). Yes, you can't add dictionaries but their en-en are good (Oxford English and Oxford American), and the en-es (Collins) is OK too. BTW, the fr-en dictionary has been very useful in my travel to France in July and the it-en in my travel to Rome on June
. I've recommended it to a coworker because of the same reason and she is glad with it.