I have had good results since the first photo. But it's not the case for other users as I read in MSM group in Facebook. I think the key is being conscious that it's a very portable tracker but also the less powerful one so you have to ensure everything is inside range of operation: wide focal, no torque because of long lenses or accessories, keep weight as low as possible, avoid strong wind, carefully align using the laser pointer, and do not exposure during excessive time (avoid accumulating tracking error).