Quality of Apache sprayers

I was looking at buying an Apache AS1010 and just wondered what first hand experience guys think of them.  The only big negative I have seen is the wheels seem to loosen off the hub.  I have heard of three units with this problem.  Is that just bad luck or is that a wide spread problem in the United States or Western Canada.  I like the size of that machine  for my farm and they are priced better than a Deere or Case.  I dont need a heavy duty machine for custom work but I do need a reliable unit. 

Any feed back would be appreciated. Thanks.