We visited Cafe' Iberico last weekend. GREAT place. Yes it can get busy, but you can always walk around a bit downtown if the wait is too long. I agree with ORD Finn that it is not a good place for an intimate occasion, but if you ever have been in Spain you would know that this is authentic. Spainards would not be likely to go and get tapas for an intimate occasion. Prices are very reasonable, the atmosphere is fun.
We also love a tapas place in GRR where we live. The funny thing we have found is that in general, the places that do tapas well in the US seem to be better quality than the average tapas bar in Spain. I think in Spain tapas are probably more considered "fast food" where in the States, being a little more "exotic", more care is taken in their preparation. Please don't take this wrong, we had some very good Tapas in Spain, but the average seemed a bit less quality than the States. Can someone corroborate this, or have we just been really lucky to find good tapas places in the US?