How safe is Timbuktu for controlling OSX Server at distance

I want to control our server (OSX 10.3.3) from my home and plan to use Timbuktu to do that. Can anyone tell me if there are any pitfalls in doiing that. If so, what are the measures to prevent that. I know about Remote Desktop but the price is quite high as this setup is only for my personal benefit and not required by my company.