Got one and like it but it is far from a perfect machine. Here in OZ, don't know about the states, we get a lot of atmospheric interference which plays havoc with the 4500s. Sure you can shut them up but when you do you lose the advantage and it becomes like running a 3500. To run in the advantage zone you have to put up with the jitters and wobbles which on some days is pathetic. These machines were definitely not ready for commercial sale when they were released here. I have been very successful using the one I have but am appalled that they sell them with the problems they have. Its like owning a 4wd that gets the rumbles when you drive over 100 ks an hour but is the only 4wd that will get to to where you want to go so you have no option but to put up with it. Some days are real diamond days when it all runs as smooth as but others
It is apparent that not enough proper field testing was carried out and that their decision to release machines within their typical 2 year time frame is money/sales based and not based upon the units themselves being ready and bug free. The massive product recall of the earlier model 4500,s was/is testament to this fact.