I owned and used a BFM for about 4 months. It is a very nice pack, but I wouldn't recommend it for EDC. It is quite large and heavy. It has a huge carry capacity, and I found I would fill it up easily. The more room you have the more you will carry.
Things I liked. The bladder with insulation tube was good. It helped keep the water cool, and helped to prevent freezing in really cold weather. Pack is also large and fits very well on large people (me). It rides nicely on hips and didn't hurt my shoulders. I used it every weekend for about 4 months until I sold it to go smaller. Picked up a Maxpedition Vulture and like it more with the exception of the waist belt. BFM is much nicer and more comfortable.
Downside. The two side pockets are nice, but when you use the lower cinch straps, it will crush items in these pockets, so be ware. Heavy pack. Something like 5 pounds without water in the bladder. Why carry extra weight if you don't need to.
Hope this helps. Also, don't spend $150. Do a Google search and you can find it for about $120 shipped.
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If only closed minds came with closed mouths.