Recently buyed one of these.
The setting is really easy and results were wonderful. Could easily take 3min exposures on my 14mm without any trails. Did 60 sec exposures on my 75 mm aswell but just for the test. No trail aswell !
These results were obtained after calibration of the laser in order to point my celestial pole with more accuracy.
The customer service was really nice, and handled really well the issues in the loss of the first shipment.
Thank you for reading and i wish you clear skies !