I have 6 Hikvision cameras, one is a mini PTZ 4mp (DS-2DE2A404IW-DE3). Also I recently got a Uniview mini ptz 2mp. Comparing the ptz ones, I have to say that Uniview is a decent option, however, It lacks a lot of features and ease of use. Price diference is not that much 2mp vs 2 mp versions...