We took the help of a consultant for the deployment.  Only two experts (admins) were there from HubSpot's side.

The deployment process depends on the user. The process involves finalizing the number of contacts and providing the data migration requirements. 

Then, their experts assist with the migration and offer a POC initially. After reviewing everything, it goes live. It was quite straightforward.

It runs smoothly without the need for maintenance unless we plan to increase the number of users or contacts.

Deployment took about 30 days from start to finish because we went back and forth on some things. We did have HubSpot help us, but once you've used a lot of these marketing platforms, they're pretty much the same in their basic functionality.

Maintenance has been minimal, especially since we use the cloud version, so it's been smooth sailing overall.

Our marketing operations team handled the implementation. 

In-house; myself.

I implemented the solution myself.

In-house, with the help of a consultant for one-time guidance. 

We implemented it in-house with our IT department who had Hubspot's support.