Global Technologies Group has been very helpful in getting our network up an running with great customer service! They have helped us get it all set up so we can begin using as soon as possible!! The only thing I would like changed if anything was that they could give you more options for what type security appliances are compatible without having them send someone out who will need training before implementing these products into your environment.
We needed help integrating some firewalls, antivirus software etc because one vendor had gone under but still others were not supported by their current provider (not enough support staff).