Microsoft Project Server I believe is best for any organization from small to large. As I mentioned, it is a little pricey so I would do research into alternative software and depending on your needs maybe look at all options, competing software. This is a tool with a learning curve and some may not be able to easily navigate this software. There isn't really great training, resources available for this tool however there are some free YouTube tutorial videos. This is great for cross company, department project management, sharing, managing of projects and timelines.
SAP Project and Portfolio Management is well suited in the area of Project Management. It gives the option to create projects from standard templates and makes it easier for the Project manager to modify based on the need. The project Manager shall be able to create a detailed project plan with timelines, Milestones, and delivery dates. Every phase of the project is controlled by a status mechanism, thereby ensuring the tracking of the project's progress.
Project planning: tasks assignments, resources allocation, progress and cost tracking. The Server version is the natural extension of the Microsoft Project standalone.
Provides one place to manage all projects, accessible by everyone in the team. This opens the plan updates to team members as well(on their tasks), as opposed to being done only by the project manager.
Reporting and visualization - resources utilization, timeline etc
The integration with the Microsoft Project standalone: if you don't like the web version, you can download the latest and work locally. When done just sync it back to the server.
This product is very customer-centric and solution-based for SAP Project Management. It has very good web-based UI. Portfolio and Project Management in one single platform which is very rare in different project management products. Effective tool to manage projects, portfolios, budget and schedule. KPI and Reporting is one of the best features of this product.
One of the key advantages of Microsoft Project Server (MSPS) is its ecosystem. It gels very well with SharePoint, Office, Office 365. The support from Microsoft is also a key driver and they are very experienced and many ways to resolve issues. Also, Microsoft has bridged the gap of cloud offering from other competitors by providing Project Online. It is an offering through Office 365 which is very lean and low maintenance.
SAP Project and Portfolio management don't need additional cost when the SAP Solution manager system is available. Thus, the cost of 3rd party tools is saved.