I bought the Seek Lanner and the Exo 4800 to do a direct comparison. Short story is I kept the Lanner.
Long story...
Really liked both packs, very very close, and if the fit is good you couldn’t go wrong with either. I feel the Exo is a very dialed in pack, there was tons of small thoughtful details. I believe the philosophy with the Exo is its just dead simple to use once its fit to you, little to zero fiddle factor. The 4800 was noticeably smaller, if that matters.
Lanner also has a very usable layout, but with a much higher fiddle factor (not necessarily a bad thing). Plus its endlessly customizable. Waterproof factor is a nice pro, slight con is the stiffness but really doesn't affect use.
Weight between the two is different on paper....but on my scale it was a wash basically, depending which accessories you used/didn’t use (pocket, lumbar pad, lid, etc).
For me it was ultimately fit & slippage or lack there of. I could have been very happy with either but the fit under weight was ever so slightly in favor of the Seek.
Anyways, used the pack on only a couple overnighters and had plenty of room and organization. Used it also on 2 out of state hunts that ended up being almost all day hunts/truck hunts, it also worked excellent as a day pack cinched down I didnt’t have to go into the main bag often. Layers would go into the stuff mesh pocket, very handy! The two zippered outside pockets would hold gloves/beanie and the days snacks/lunch. The faux lid pocket is perfect for a dedicated place for headlamp and/or gloves.
You could easily fit tripod/spotter in the mesh pocket, but I used the large side pockets for that.
Not sure if I missed anything, but its a fantastic pack (I also own a Cimarron and plan to purchase more of their tents..)
The last downside (also a plus!) is that I don’t get to look at/research new packs any longer, I don’t see any reason until it wears out or there are some major advances in packs!
Looking forward to doing some more backpacking with it this year.
