Fitbit Air Questions

For those that have been using it, I'm curious about the new Air. I am looking to obtain something that can track sleep, calories, and steps, while being able to hold up in a quite brutal environment (I work in a foundry). I feel like the lack of a screen would help with the durability and pose less of a distraction while I'm at work. Based on reviews I've read, it seems to be one of the best bangs for your buck available right now.

Any thoughts? Any notable downsides that people have experienced so far? Is there a different fitbit that would be better for my situation? Thank you in advance!