Miraku - New Japanese/Sushi Place on Spruce b/w Broad and Juniper
I live in the neighborhood and have eaten there several times and enjoyed it.
you are correct is was a tanning salon and the renovation is pretty nice. the space is comfortable, nicely designed and very clean..
i found the sushi to be very fresh. the fish is cut to order, which i always take as a good sign. they have all the standards in terms of fish and roll varieties..
the non-sushi items were very good as well. i had the steak terayaki which was a rib eye grilled nicely to an accurate medium rare with a nice sauce. it was served with a steamed assortment of veggies (asparagus, zucchini and broccoli) and rice. the vegetable and shrimp tempuras are very good as well, fried perfectly and not greasy.
they do have daily specials as well. last time i was there they had river crabs they were sitting in a fishbowl on top of the sushi bar. they are quite small, about the size of silver dollar. they quick fry them and are served whole. i was not feeling adventerous to try them but will on my next time.
the prices are pretty standard for philadelphia sushi places but i think the quality is above average and i would recommend visiting.