I have used one of the new Integy Auto Tire truers and it does function well. Just the other day I purchased a used Ofna tire tuer and it has a stronger motor than the Integy and a very sharp/efficient cutting bit. Either one will do the job, but for my limited experience the Ofna is a 'cut above' the Integy, but higher in cost.
I am currently trueing 1/10 sedan tires only.
"Yellow Jacket" Mugen MTX-6, Picco Torque
TeamNITRO RC Club, Lynwood, Illinois