So what are the main elements of the research and development company.
NAV fits some, not others, depends upon the requirements of teh business.
Your questions is actually irrelevant, because it is the same for ALL businesses - you need to see where the business requires processes and information through the analysis phase, then you understand the shortcomings if any.
Whilst reasearch and development is generally a more flexible approach there are many standard aspects, it just depends upon teh requirements of the business, which is where you must start.
Also you can search teh add-on catalogue on partnersource if you want to go this way, but without understanding what the business needs it is again irrelevant.
You HAVE NOT given me the business requirements - what do they want to track, what are the key deliverables and reporting metrics, how do they want to cost time, are you setting projects/jobs up to track, do the business need it.
No I have not implemented in a solely research and development business, but that is kind of irrelevant.
I will shortcut this. I will say “Yes” it works, now you tell me the problems you have mapping the business requirements to NAV and I will say whether you need to use standard software, modifications or an add-on.