I Have an old 200 model. Knowing what I know now I wouldn't upgrade. It works well in a consistent wind direction and has to be positioned right. If wind shifts you have to adjust position or they'll smell you. I've killed a few deer in the wrong wind because of it but it's more of a pain given price and adjusting it. The other thing Ozonics doesn't tell you is you have to send them back for adjustment every so many years. It would cost me a little over a hundred bucks to send mine back. Don't know about the new ones. Seems very expensive to me compared to what I paid for my 200. Like I said, I would definitely not upgrade given my experiences with it. Just hunt the right wind as its a lot cheaper.