We installed Dolibarr ERP on Nethserver using a shared folder, for LAN users only, following the instructions in the readme.md file found in the Dolibarr download from here: https://sourceforge.net/projects/dolibarr/files/
It takes less than 30 minutes to setup, and has a good WebGUI where the main parameters can be set.
There are only LAN users (<15 users) for this, and we use it to keep customer records, stock control, etc, but Dolibarr has many other features we do not use. We chose it because we have a mixture of Windows and Linux clients, and all have no problem using the Web interface, in the popular browsers (Firefox, Chrome, etc) The performance on both Mint 17.3 and Windows desktops is quick; we have shared folders for keeping plans, drawings and site photographs - about 400Mb per customer and there are 511 customers - that can be accessed by all users at anytime, and we do not experience any slowdown or problems with Nethserver.
This office has a Dell PowerEdge 2850 with NethServer release 6.7 (final) and is the gateway, email server, print server, 5 shared folders (see above), VPN, ownCloud, Dolibarr ERP, and VMs. Not a big workload, but VERY reliable, and easy to configure.
We are impressed with NethServer when compared to others, and this is the best by far.