Currently have a workgroup environment that with a server running Multipoint 2011, primarily for RemoteApp access for QuickBooks. Company has grown since it was installed about 5 years ago. Now about 12 users in the main office with 4-5 accessing QuickBooks at any one time. There are also about 10 laptop/tablet users in the field using MS Office Apps primarily. They connect with cellular hotspots, so connections are variable. Expect to add a few more in the near future. Approx 30 devices total, because some users have desktops and Surface Pro tablets.
Have NAS for storage currently, primarily for local backups. Office and email is through Office 365.
We are needing to add more storage to centralize access, and update the server(s) for QuickBooks and adding a DC. Am considering on-premise vs cloud server options and wondering if it would be better to stay on-prem for the best performance. Any recommendations would be helpful.