I had an early model Eberlestock, didn't quite match what I had in mind as it was difficult to draw a long barreled rifle out of the scabbard. Glenn is a top notch guy and it's a great company to do business with. I prefer Kifaru and have 3 of their packs- Spike Camp/Late Season/Guide. Their harnesses fit me well and the components are interchangeable.
I bought a MR Crew Cab which I like OK, but pick up the Kifarus more frequently. I'll likely sell the Crew Cab in the near future, not b/c it's not a great pack, but more of a matter of fit and use.
Try some on if you get a chance. Kifaru is based in CO and MR in MT, if you get near them, they both have great customer service. Not certain where Eberlestock is based.
David