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Aten Software Support is swift, responsive, and is truly there to help. They have instructions published so that you could set up on your own. However, you don't have to do this on your own as they're more than willing to help you if you need a helping hand with the setup, going above and beyond to dig into accounts for you.

Their follow up has been reliable, and we've used them for years without issues. Their pricing is also one of the most affordable (and reasonable) on the market.