The processing of the lens is very good, the bayonet fits like a glove and not budge. The 25mm at the Four Thirds sensor correspond 50mm small picture of what the lens perfect for use as a portrait lens makes but also for all other operations, the focal length is well suited. With F2.8 it is also very nice to play with the depth of field as a design element. The AF is also super fast.
As for the construction of the lens cap with screw cap I find this unusual, but by no means a disadvantage. The thread fits well and it can be solved almost as fast and secure as the clip locks of my other lenses.
Really a pity, however, that the objective is not accompanied by the lens hood, but that can get over. All in all, the Zuiko 25mm f2.8 a recommended all-round lens that should be in every Four Thirds lens Park.