KeyedIn is well suited for a number of projects from IT, Sales, Development and Marketing. It is pretty flexible so implementing it into any number of workflows seems fairly easy due to it's customizability.
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.
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.
It is used to fully automate every stage in the project lifecycle and forecast on resources required to successfully complete projects. It empowers managers to complete projects in time and within the allocated budget. One of the many features that make this platform unique and suitable to many modern businesses is the portfolio management feature.
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.
In the sense that it has assisted in closing projects more quickly so that they may be invoiced for, it seems like the ROI is a pretty quick turnaround
By breaking out tasks into a well defined workflow it allows for accountability and consistent project delivery across all agents.
Providing services that the end user feels satisfied with is definitely a top goal. Having well defined workflows has also helped address problems by reducing the variance in each project.