Assembly wasn't horrible - you need 2 adults and no equipment, they include it all. Some of the holes in the wood were not quite placed correctly so one of our chairs is wobbly - they tell you to "drop" it from 30cm to fix it, which didn't quite work and is sort of odd....
Looks nice though, and is comfortable. Will work fine for what we need. 
No umbrella hole. Table is rather small but should fit 4 for dining.
At $380, it's a bit pricey for what it is, I think.