This is a very nice jacket for a great price.  I'm not sure about the fill level, but I suspect it's quite low, even for a lightweight jacket of this type.  I have a similar jacket made by a premium brand and it's a little heavier.  The construction, design, and likely materials, are better with the premium brand, but the cost was also much higher.  The difference in price is far greater than the difference in quality, though, and I suspect that I won't even notice a difference while wearing them.

The sizing is accurate.  Some are saying it's small, because it's designed to be a lightweight jacket that fits slim, so it doesn't have the bulk of hefty down jackets.  The description mentions it being a slim fit, when talking about the sizing, but they really should put that at the top.  However, it's really not that slim and it's actually a little larger than the premium brand I mentioned.  Still, if you often need to size up with tops, then you might need to size up with this one, even though I could probably get away with sizing down.

My only concern with this jacket is that there's no mention of certification for the down feathers, such as RDS.  I completely forgot about this while purchasing the jacket or I wouldn't have have purchased it.  I'll usually pay more for the peace of mind in knowing that no geese were hurt, but sometimes I slip up and forget.  That's also the only reason I didn't give this jacket 5 stars.