The ability that this tool gives you access too when it comes down t othe technical aspects about your model or part as well its machining capabilities are great! I have not found any problems yet but i am sure there will be some day sooner than later so we can get used towrads them since they do offer free trial versions which allows us 2 try out their tools before purchasing anything from thenonewer companies!! We use Apriori's DFM/DTI solution called MACH3d2EZ along side other 3rd party simulators suchas Solidworks CAD / CAM system etc..to help determine what parts need further inspection priortot he final assembly stage thus allowing me more control over my project timeline while also reducing costs associated wth substandard workmanship.