Don't currently have one but have handled literally hundreds, and am planning on getting one for my 457 down the road. Solid chassis, the polymer panels are comfortable and eliminate the cold metal issue plaguing many chassis in the winter. It's a one-piece design so you don't need to buy anything extra (other than an enclosed forend; factory default is open) like the pistol grip or buttstock like MDT's other offerings. Be nice if they came in more colors than black and FDE, but I guess you could always custom order another color. The only concern is disassembly, can't be too rough or you could crack a buttstock panel (will not affect function however).