Full disclosure: my boyfriend cooks at Lola.
That said, this is a restaurant that visitors to Cleveland really should not miss. The food, ambience, and service are simply outstanding.
The pierogis are a perrenial favorite, and if you are lucky enough to eat there when the sweetbreads are on the menu, you are lucky indeed.
One word to the wise: if you would like to go on a weekend evening, plan ahead and make a reservation.