I absolutely love the buzzz os. Every bit as awesome and predictable as the zone, just longer and glidier. This disc has the perfect combination of stability and workability. Can be forehanded better than any mid I have ever thrown. If you bag a buzzz os, buzz and a zone, you will have every shot you need in those slots covered. Not recommended for beginners or players with lower arm speed. 

If you don't want to pay an arm and a leg to get a really flat gator this is a very affordable alternative mine is just as stable as any gator on the market and much easier to find plus it feels just like a buzzz which imo is the best midrange ever made. Its a great complimentary disc for the midrange shots that you need to go hard left every single time. Also great for forehand throwers who like a lower profile disc real stable and real dependable  

I have two of these, in Ti flx, and Elite D. I love these as my overstable mid range. If you like the Buzzz you will love this as its overstable brother.

My ti flx is very overstable with almost very low glide. It is great at beating headwinds, or a spike hyzer. 

My elite D; I use it for glidy dog leg lefts. It has a nice amount of dome and thus has a considerable more glide than my ti flx. In headwinds it will push through and land flat. 

I am buying two more right now. one in Ti and maybe z or ESP 

Throwing my Buzzz ti is as smooth as butter. The disc has consistent flight and allows me to feel confident with every release. I picked one about a week and a half ago and I couldn't be happier.