Modern Club is a cozy little place; unfortunately, perhaps a bit too little.
Modern Club is most well-known for their Kansai-style okonomiyaki, a Japanese festival food likened to a pancake. Their food is cooked "teppan" style and is usually served hot and fresh, and all of their dishes are delicious. Unfortunately, they are fairly steeply priced, perhaps moreso than some people would be willing to pay for. Still, one cannot deny that their food is good, even if expensive.
Despite being so small the place is usually packed full of people at night, which seems to make them rather understaffed during busy weekends. I've had waitresses forget an order or two more than once on a packed night, and sometimes even a simple refill of tea will take forever. However, their staff are very friendly and when the place is near-empty they go that extra mile to service you, so I suppose it's six of one and half-dozen of the other.
The ambiance is extremely suited to a restaurant of their scale and their seats are delightfully comfy. I've whiled away more than a few hours catching up with friends up at the bar, or discussing the latest developments at a table.
If I had to sum up Modern Club in a single line, it would be this: Good but Expensive. Those two adjectives describe this place pretty well - it's an excellent location for, say, a business meeting, but if you're looking for quick dinner, look elsewhere.