ownCloud

It's well suited if you are storing lots of files for a project and want to keep things organized by multiple projects. It's also nice because you can package up links and send them to clients without them having to have an account.

I'd easily recommend ownCloud to small businesses or teams within organizations. I've not used ownCloud in large deployments, so I'd hesitate before suggesting it in a situation where more than 10 users need support. That said, ownCloud is easy to set up and multiple instances could be used to service a large user base.

The documentation available is good and eases the task of learning how to use the service. For setting up a server and configure everything, the available information is also suitable for Linux developers. I have never request the official support from ownCloud team, so I cannot rate that kind of assistance.

+ Excellent for a personal or small business file server
+ Collaboration server
+ Replacing Exchange server with WebDav Calendar sharing and Contact Sharing
- Easier integration for WebDav in Outlook, you have to do some research on your own

You mostly rely on the thorough documentation and forum to answer your questions, unless you pay for support.

I'd easily recommend ownCloud to small businesses or teams within organizations. I've not used ownCloud in large deployments, so I'd hesitate before suggesting it in a situation where more than 10 users need support. That said, ownCloud is easy to set up and multiple instances could be used to service a large user base.

OwnCloud/Nextcloud is a great application for cloud storage of files, and makes sharing specific files or folders easy and fast. It also makes a great tool for real-time collaboration, including real-time chat and simultaneous editing of documents or spreadsheets. I have used ownCloud to assist clients in sending large files that could not be emailed -- for example, one of my clients is a Video Production agency. They produced a commercial to air, but could not email the file as it was 400MB. OwncCloud came to the rescue. I set up a temporary share and allowed him access to upload into that folder. Once the file was in the folder, I generated a share link that was then forwarded to TV stations for instant viewing in a browser. Each TV station then downloaded it and was able to add it to their scheduling system quickly.
From the Photography side... I am able to deliver large amounts of files quickly and easily to my clients, and they can download or view on mobile devices easily.
Since I use ownCloud on a daily basis, I cannot think of any reason why I would not use this software.

OwnCloud is a great replacement to local SMB shares, in my opinion. It supports Webdav and it can be easily and safely published on the internet for remote access to the data without VPN. OwnCloud would also be great for a small to medium enterprise that can't afford the real enterprise alternatives, need way too much storage or need/want to control where their data is stored. I don't think ownCloud is well suited for big enterprises unless you really need to control/secure your data. I feel it would need a lot of investment to scale on a large user and data scale and stay responsive.

If you want to keep control of your files, for yourself or for your company, OwnCloud is the self-hosted cloud for you. There is no real competition when it's time for self-hosting. If you are looking for a hosted version, be sure to compare with the big players like Dropbox, Google and Microsoft. It's cheap, highly available, and secure.

I have a giant Excel spreadsheet and a Notebook document I use to upload for someone else to look at. They are able to download and look at it as if we were sharing the same screen. I appreciate being able to upload large documents and not having to send it through an email in a compressed or Zip file.

I believe that ownCloud is suitable for any kind of company for normal file synchronization and file sharing. It is less recommended for companies that use very large files based on images.

Perfect for a smaller company having no solid document server. Without any major costs you can go from 3 to 30 to 60 users with the same hardware or VPS and if self-managed, no payment per user per month. Less appropriate when users absolutely require collaborative editing of documents. Pick Office365 or G Suite (Google Documents for work) instead.

Regarding the community edition, there is a reasonably good support on the IRC, forums and in the issue section on Github. Perhaps a much more individual approach would be available if the premium support was chosen and the instance of the server was provided by the Owncloud company that also offers some premium extensions, not available generally. However, we did not need this level of support yet.

It's perfectly suited for agencies, where customers and clients are constantly sharing files with each other. Owncloud allows for this, and it's really easy to go back and see what files were shared and when! Having an archive is really useful as we don't have to go back to the client and request it again!

Easy to setup and maintain on linux systems but lacks usability if used in a Windows server environment when SMB shares need to be mapped.

ownCloud is well suited for a company that needs to share many docs with one another.