Wow! The name "Alpha" really suits this backpack well when it comes to functionality and amount of backpack technology(?!) went into this thing.

Pros
-Front access, side access, large compartment for 2 sleeves of tablet/laptop.
-High quality zippers that would block out water and moisture really well by the look and design of it.
-Removable shoulder straps for mini-duffel mode
-Body of the backpack is rigid enough to be called a structure, which would protect the gears well from impact.
-1.5L Expandability with top lid
-Stretchy side pouches for tripod/water bottles
-Magnetic hidden pouch for quick storage and placed in the back center strap, which is also for mounting on carry-on handle
-The quality of the exterior/interior fabrics and construction is really impressive... and I mean REALLLY IMPRESSIIVEEEE!! They even feel good to touch.
-Too many to list. I mean it literally and sincerely.

There are myriads of features in this backpack that would easily make you love it. It's also amazing how many good ideas they were able to pack into this small backpack.

Cons...
- Uncomfortable (at least in my case)
The top end of each shoulder strap is attached to the backpack via a huge metal harness. It is the harness that allows you to press/click to remove the shoulder straps off from the backpack body. This way, the backpack goes into somewhat of handheld mini-duffel bag mode mentioned above. This harness is really cool but can cause major comfortability issue depending on your body type.

I normally like to keep the straps short to have the backside of the backpack directly on my back, like a hiking bag. When I set it up this way, the harness pokes into my scapula constantly. It's extremely uncomfortable for me. I tried various strap settings. It's the harness that causes the backpack to be hanging a little awkward on my back all the time. It feels a little bit better to keep the shoulder straps long. However, I would not call this long strap setting "comfortable" either compared to other backpacks in the market.
- Internal space seems really tight for 25L. I have Lowepro Protactic 300 AW ii(20L), 450 (25L) and Manfrotto Offroad stunt (about 17L). Alpha is more comparable to Offroad stunt in terms of internal space. Maybe compete with Protactic 300 if I really shoved stuff in with the top expansion.

Again, this backpack can be super amazing if it fits your body type. I really love all the bells and whistles features in this backpack but unfortunately the straps do not work for me :( I really wish they make V2 of this backpack with the metal harness changed. I would definitely consider buying. Otherwise, I would highly recommend people to try this backpack though. In terms of features, you definitely won't be disappointed!