This place is seriously overrated... and maybe it's because there is a scarcity of good restaurants…read morein Riomaggiore, but there is usually a line to get a table, but I can tell you it is very likely not worth the wait (we waited around 30 min).
Beef ravioli (€15) - Really really disappointing. It clearly tasted just like frozen ravioli with sauce likely from a can. In fact, I think most frozen ravioli I've gotten from grocery stores tastes better than this. What a shame.
Steak (€36 for 260g) - It seemed like steak was this place's specialty, so I was hopefully this could redeem it from the ravioli... but I was wrong. For €36, I would have expected a high quality steak, but instead I got a very mediocre, kinda chewy steak that was of no higher quality than the cuts that I can buy from the grocery store.
The owner is American (maybe with Italian heritage), but I still expected better from a place like this with the popularity and reviews that I saw. The interior of the restaurant is cozy without many tables (hence the line to get in).
Bottom line is I think you are better off finding a different place to eat in Cinque Terre / Riomaggiore with actual good quality authentic Italian food.