I am another recent GSO 300mm purchaser and I must concur with the reviews of Joe concerning the scope. Last night I observed two planeteries NGC2392 in Gemmini and NGC2438 in Puppis. The Gemmini planetery was very bright and easy despite its low elevation and the Puppis planetery showed considerable detail. I used a 9.7mm Meade s/plossl on both planeteries.
As a telescope it comes HIGHLY RECOMMENDED