I do see why this place has such low ratings but is also voted the best vietnamese restaurant in Las Vegas.
They seem to be the only restaurant around that isn't ridiculously overpriced and offers many options. Vermicelli noodles, rice dishes (not com tam/broken rice though), ph, soup, etc.
I've been here twice because my dad only enjoys viet food.
My first visit I tried their mi xoa Kim long (crispy egg noodle house stir-fry) . It wasn't that good. Too sweet and not enough savory. Oily and most of the noodles where already soggy by the time it got to me. And a small variety of vegetables too.
This morning I tried com bo luc lac(shaking beef and rice). It completely lacked flavor and the rice tasted dirty. It's presentation did not look like it was worth $12.50 either. Plus I ordered an egg which came out fully cooked(I wanted sunny side up), broken (I'm a perfectionist), in a pool of oil(plain nasty), and 7 minutes after my rice plate came out(wtf?).
My parents order one of Kim Long's more popular dishes. Canh chua (sour soup) and ca kho do(braised fish clay pot).
The soup was sour as expected, the fish tasted fresh and clean so this was good
The fish clay pot as overly seasoned with oyster sauce so I wasn't a fan.
Service was mediocre. Basic viet service by people who weren't viet ...?
Overall, I was disappointed with Kim Long. Sorry.