I have five. One S1 one S2 and three S2 Big Sky.The S1 is not near the quality of the S2 and S2 Big Sky . The Big Sky's are better than the S2 but not the big difference between them and the S1.I had one customer service experience scope was damaged no fault of Sightron replaced at less than 1/3 the price of a new one .They were a little slow and took several phone calls to keep things moving.The S2 Big Skys are a very good scope but they are discontinued Grafs had them for around $250 last Tuesday saw it at work got home went to order they were sold out.

Last edited by willycc; 04/16/17.