The lens is about 22 mm long and has "heft" of 70 gram. Seriously, if you come from a big DSLR with full frame lenses, this thing felt like a toy. But the camera and lens combination was almost pocketable (at least in a coat) and it was my first dedicated 35 mm lens. This 35 mm equivalent stuff is really annoying but it is the reference we are all used too even though no one uses 35 mm film anymore (well the Hipsters do) and most digital sensors are way smaller than 35 mm film. But here we are.
35 mm is kind of an iconic focal length. Together with 50 mm it is supposed to represent the human vision most closely and was used by many famous street photographers. I came to like this focal length quite a lot. It was wide enough to encompass enough of a scene but not so wide as to look distorted. It might look boring at first glance but I do enjoy the natural viewing angle.