JAMIS Prime ERP

Very well designed fundamentally and technically for government contractors. They know government contracting. Where Deltek is more for overall PSA and Project Mgt. For a SaaS or OnPrem product, it has good mainstream functionality.
Piggybacking in Acumatica framework is nice, as it adds additional resources online and consulting.
All the Jamis "modules" of Job Management, Subcontracting, Time & Expense, Contract Managment, etc.. are good.
You get the Acumatica InterBranch Functionality, Some Allocations Functionality, and all the great GL, AP, AR, Fixed Asset, Cash functions.
Customization if pretty straightforward.

This question only addresses "software".
Pros of Jamis the company: Great Professional Services team. Great Training and Learning Development Team.

Menu Items - lefthand menu bar is missing all the verbs. It is just a list of nouns, and hard to tell QUICKLY what each one does. (this is customizable, but why should I have to)
Field Lookup and Search functionality on data and transaction entry is wonky, and it works differently in different fields, which is frustrating.
Because it uses the Acumatica framework, Jamis has to wait a whole cycle/year or two for Acumatica to to do and release their updates and upgrades, for Jamis to then do theirs. (two step cycle is slow).
Acumatica is not for International Multinational. Acumatica (hence Prime) is limited in its Multicurrency, Translation, Consolidations, and Intercompany functionality because, even in 2019 and 2020, although they say they changed it dramatically, they just renamed a few things. Within a "Company Database Tenant", you can have many "Branches" set as "Company" or "Branch", with Consolidation and InterBranch functions, but all of them have to have USD Home Base Currency. For different Home Base Currencies, you have to setup separate "Company Database Tenant", then you lose the Interbranch and Consolidation Translation functionality.

This question only addresses "software".
Cons of Jamis the company: Poor Customer Support Team. They use that role for all new trainees to "learn", so they always have to "go find the answer" from Professional Services or Training. Not acceptable.

Jamis Prime software is extremely easy to use and I am able to rid myself of all of the excel spreadsheets of prior years. This software definitely packs a bang for the buck as it is all inclusive. Integration with the existing system was painless. We are now able to generate reports on request and little effort. I love the reporting feature the most because all you have to do is choose the field!

To date I have not experienced any cons with the software itself. Issues encountered were a result of my misunderstanding how to process requests.

Establishing new contracts, various billing rules, and invoicing is very easy.

Lack of usable reports for info that should be easy to find, and HR is not integrated well at all. In fact, HR is a separate system altogether.

Reporting ability. JAMIS has 3 reporting types and can connect to Microsoft office programs very easily allowing for quick analysis and reporting. Connecting to Power BI allows for a simple presentation of accounting information to non-accounting personnel.

The inventory module needs to be more fully integrated. But they are working on that for a future release.

Jamis Prime ERP has benefited our organization with visibility into the cost structure and management of contracts and cost centers in the organization.

The business planning module has proven to be a large undertaking to implement.