The townhouse itself is great - spacious and sunny, with an incredible view of the water. The kitchen is well-appointed, and with large rooms and three bathrooms there is plenty of space to spread out. While the decor definitely looks like it's from the set of the Golden Girls, it all works just fine as a vacation rental. The location is also great, close to restaurants, some great snorkeling, and easy access to other parts of the island.
Our very significant issue was with the king bed in the master bedroom. Lumpy and somehow slanted on one side, my husband spent much of the first night sliding to the edge of the bed - the experience was similar to camping, when you can't find level ground and spend the night constantly adjusting and re-adjusting to make yourself flat. It was so bad that we we spent the rest of the vacation sleeping in the two twin beds - at least they were flat - but not quite what we were after for our romantic Hawaiian vacation.
One other thing to note is that there are indeed portable air conditioners in the living room and master bedroom, but when turned on, they were quite loud. This wasn't an issue for us - we visited in February when it wasn't too hot, so didn't use the air conditioners much - but if it was summertime and we needed them on all night, I expect it would've been difficult to sleep with the noise.
On return visits to Kauai, we would very happily stay in this unit again if there was a new mattress. But without knowing that for certain, we'll be finding other accommodations.