Google Data Studio

The most impactful features of DataStudio are the wide range of visualizations you have access to in order to present your data in the most engaging and insightful way. Coupled with the wide range of data connectors that are available natively and also third-party connectors, which expands the scope widely.
Once you have understood the overall way of working, the tool is very easy to use. There are lots of training videos available and lots of support available over the internet, in case you get stuck.
Integration into my business practises was easy because of the flexibility in data input sources. If a specific connector does not exist, then you can always fall back on file imports.

The most important missing feature for me personally is a native (free) data connector to Facebook Ads. One has free access to all the Google platforms and I have a constant struggle to get a decent data connector to Facebook ad platform data.
One improvement that I suggest is to add the functionality to do processing on calculated fields to do for instance 7-day moving average calculations on the platform itself. Now I have to do those calculations on a Google Sheet first and then import the results into the DataStudo reports. Or even make that a built-in function?

Google Data Studio provides a great option for creating dashboards that present your basic data, particularly if that data resides in a Google tool (Analytics, Analytics360, even Google Sheets, etc.) The learning curve for this tool is not extensive before you are ready to build dashboards and reports. The template library is useful to learn what ways you can style your data.

With any data tool there is a learning curve, and the documentation provided by Google is not extensive. Fortunately there is a large offering of YouTube user generated content that covers almost every possible question you may have to get the desired result out of the platform, making it one of easiest Data Visualization tools to learn and get current information.

I love the integration with bigquery, as I already mentioned our data warehouse is there, we can build dashboards, reports, corrections, validations in minutes

it has a limited number of graphs, and deploying it is quite slow, also share it, I would like there to be more possibilities to filter by data

Once it's build your data sources, it's easy to build your dashboards even they don't have the best data viz options. It's in the Google tech stack, that makes easy to your team keep running. Would like to have Microsoft Power BI? It was my concerto too! But yes, Google Data Studio will deliver all info you need in a beautiful interface - don't worry. Good price, clear and light interface, access from any device. Your data project will meet the needs.

Different from Microsoft Power BI for example, you don't have a on screen calculation, easy to work on. Many times you need to create new fields, build cases with calculations to have the field to use on. You need an administrator/builder with more tech skills. But any doubt that I found, I had case or example in the web to search and use. But once it's build the base, it's easy to build dashboards, deploy, upgrade and so one.