Lots of people have good luck with them and are proud to own them.
Personally, I think they suck. I had nothing but problems from the product, Buckmasters, to the point I won't own anything Nikon and sold anything that I had with Nikon on it. Warranty is great though, they send you new ones every time yours breaks. Of course I'd rather have the game I was after than shipping costs and a new scope to replace the one that I found was broken in the middle of my hunt.
To each their own though. I can guarantee you for my one negative experience there will be 10 comments about them being better than sliced bread and ice.