It's a great call. I tried a bunch of calls at Sportsmans Warehouse including all the Foiles, Buck Gardner, Echo, Rnt, etc. The dirty bird was the most versatile for me, in fact I had trouble blowing some of the other ones.
I really like the dirty bird. It is my #1 go to. It hits low notes, and is very quick from note to note.
I would recommend trying it out b/c I don't think it is for everyone, but if you try it and like it I think you will be very happy with it.