The setup is easy, but administering the new architecture is complex for DBAs.
The advantage is that, compared to the old architecture, it's totally transparent for developers and end-users. It has no impact on developers or end-users, so it's great for them. 

Migrating one environment from the old architecture to multitenant architecture can take approximately two days. It's important to plan because there can be some downtime. Unless it's a large company, one in-house DBA can deploy the solution. 

Oracle Multitenant is typical of most databases. The initial installation takes a few minutes. An in-house team of database engineers, admins, and developers handled the deployment. I wasn't involved. 

The initial setup is not overly complex.

It is easy to set up the solution. 

There's a GUI pop-up. It's mostly clicking  next, next, next, unless where you just specify certain items in some configurations.

The deployment time depends on the setup. If it's one single use of a database, it can take a matter of just two to three hours.

I'd rate the setup a four out of five in terms of ease of setup. 

It's very simple to install.

You need to understand the concept of Multitenant database because it’s a massive architecture shift. Your scripts might no longer run and you need to change the monitoring. As I said, some namings are little confusing (like Container can be named as PDB or CDB while CDB stands for Container Database). You can unplug a PDB but can’t plugin a PDB (you need to recreate it in that event). But if you get that, it’s easy!

It took a while for us to get it, because of the new technology, but once we got the whole of it, it's pretty straightforward.

They didn't send a team. Everything's money. If they send people, it is money, and I work for the government, and we don't have that much money lying around, so it wasn't easy.

The learning curve is a bit steep for Oracle RDBMS 12c Multitenant Option when it comes to resource management, but once you get the hang of it, it's simple.

Initial setup and configuration is so simple; one of the simplest things to do. There are no issues configuring multi-tenant; very simple set up.

Regarding the initial setup, I think some people who are using the Oracle DB find it is easy, not so difficult. I installed it only for a test on a computer, not on a server. 

When I installed it on some machines, it was easy and took one hour, I think.

The initial setup of this solution is easy. For us, it went fine and took about thirty minutes.

One person is enough for deployment and maintenance.

It was a fairly straightforward initial setup. We didn't have much trouble with it.