We basically had them implement it in-house for us. So, it was done in-house, but it was done by Netsparker's team. It was not done by our team.

In terms of maintenance, it was being managed by a team, but I don't know how many people were managing it in that team.

The installation depends on the scans we perform. A typical scan will take only a day. I am talking about configuration and not about the scans.

Maintenance is not a major issue. We have good support from Invicti to help us maintain the solution.

I implemented this solution. 

I handled the implementation myself.

For the trial, Netsparker itself contacted me by phone. Their support is really nice and helpful.

Not from a vendor team.