I asked last night about Oasis, but didn't get one response either way. We bought the gc on restaurants.com for $3 for a $25 gc.
We had a great time. We had an appetizer, 5 different rolls, a bottle of sake, and shared a squid salad. With the tip included, we spent $59 using the gc!! The rolls are pretty typical fare. The cucumber and crab appetizer was GREAT. The squid salad was reeeeeally good and loaded with squid. The sushi chef and the waitress were both really friendly.
While we were there, there were four other tables and one take out order. So not a huge crowd, but a pretty full house for such a small establishment.
We will DEFINITELY go back again. I bought two more gc's since they don't expire until next year.
Give them a try!! The prices are VERY reasonable. The service is good. The food, while not the highest quality of sushi in Louisville, is really good.