I was recently gifted with a BM 903, the mini version. There's obviously will be some differences between the two, but maybe you'll find this helpful anyways.
Pros:
-I like the extra contouring on what would otherwise have been a flat G10 scale.
-Very light weight
-Thin package
Cons:
-The G10 is surprisingly coarse, I've had Emerson's that are less aggressive.
-The pocket clip has a large amount of side to side flex. The clip itself just flexes from side to side due to the large cutout.
-The stop pin location makes the thumb ramp really awkward. The hump to accommodate the stop pin is placed to far towards the rear of the knife to function as a thumb ramp but is the same height as the blades thumb ramp, preventing its use. Your thumb kinda just sits on top of both awkwardly. Its a pretty significant design flaw.
-154 cm on a $150 knife.
-Arrived with poor centering and significant side to side blade play
-Pivot was very gritty until I disassembled is and polished the internals.
Overall, I was not impressed with this knife. For the price I would have expected better materials, fit and finish, and a lack of what I consider to be a very large design flaw.