I'm glad that the pack worked well for you. I have a couple of things using the usual EDIT/Edit/Comment conventions. Please fix and upload when ready.
It was nice working with you on this onesee you down the trail
Comment: According to the new guidelines, please indicate somewhere in the LTR your total days/nights/miles (or some combination thereof) usage of the pack.
Edit: Temperature that I experienced during the outings
>>>I think "Temperatures" (With an `s') sounds better
Edit I didn't have enough room and I felt like the pack was bulging the seams.
>>>bulging *at* the seams
Comment: I ended up having to take a different pack for my overnight trip.
>>>I think this is an important point, and I think you should make it clearer what you mean (assuming I understand correctly). I suggest something like: "I was planning to use the Atmos on an overnight trip, but I found that I couldn't fit all my gear, so I ended up having to take a different pack"
Edit: The fit and comfort of the Atmos 35 on my back continued to be extremely comfortable.
>>>I suggest removing the first use of "comfort" from the sentence