Finally got around to trying Sfinaki. I thought it was pretty good. Wife thought it was solid. Found it a tad pricey for what I was hoping to pay for a modest Greek meal. We didn't use an Entertainment coupon but if we did, I'd consider the pricing to be in the ballpark.

We ordered a calamari but forgot to ask if the fried or grilled was recommended. They ended up bringing us the fried. It was good but pretty standard with pieces of red onion and tzatziki for sauce. The portion was pretty large (we couldn't finish it).
Tangent: My buddy and I headed to Cactus Club after a Lions game this year and they had a really good calamari which was mixed with a couple of different peppers (instead of red onion) and another sauce along with tzatziki.

We actually had very good service. Friendly staff. Got our food pretty quick after ordering.

We're going to go back but only after grabbing a coupon first.