Used this bag this past weekend on a small hunt here in the Northeast (packed about 6 miles in total). Best backpack I have used to date (I have not used SG or Kirafu). Great support; almost too much for a daypack, took all the weight off my shoulder and placed it on my hips. I removed the belt (which is difficult due to the velco and thickness of the belt) and you could easily use this as an airline carry-on. The only drawback so far for me in regards to an every day carry pack is the lack of internal storage/pockets for the small things that one would normally carry daily - I'm talking pens, charging cords, key, etc. Hunting is where this pack excels however you could easily pack a smaller-width laptop in the sleeve for sure. Main pocket would fit a large-size laptop.
No buyers remorse for me on this pack. I will be putting this pack to the test later in the month on much longer hunts. I will try to report back my findings.
Any other questions let me know.
Luke