Putting the stress where the accents fall, rather than ignoring them and using the Latin stress rules, counts as an unexpected plus in my book (though not doing so would probably shock most Continental Classicists). Also pronouncing /η/ as a monophthong. Though I did notice that he used fricatives for /φθχ/ and didn't deaspirate his /πτκ/. I wonder if this was a conscious choice to ensure his listeners could tell the difference, or whether he just couldn't do it.