One of the nice things about most of the business Office 365 plans is that they come with the ability for users to download Microsoft’s suite of desktop apps. Office 365 Midsize Business, for example, comes with desktop versions of all of Microsoft’s programs, including Word and Excel, and can be installed locally on up to five PCs or Macs.

If it’s Outlook that’s keeping companies invested in Microsoft, Office 365 has quickly become the only rational way to go for most firms. Microsoft offers full Outlook access online for remote employees, but is also available as a free download on computers. Microsoft has taken the Gmail model for online email and improved its own desktop solution. Although the debate rages over which platform is best, it’s hard to take too much issue with Microsoft’s Outlook.

Collaboration is central to Microsoft’s Office 365 sales pitch. The company has said that customers who buy into its platform will find that its suite of applications, most notably its integration of a cloud-based SharePoint, makes it a suitable collaboration platform for companies of all sizes. The company might be on to something.

Support is everything in the enterprise world. That’s why Microsoft has made clear that all of its Office 365 plans include both community and phone support. The company says its platform allows for “IT-level Web support and 24/7 phone support for critical issues.” For enterprise users, that’s a key ingredient when deciding whether to invest in Office 365.

Although Microsoft has been criticized by some for going with an annual fee for its Office 365 platform, the company’s pricing is reasonable. Its Small Business package starts at $5 per user per month, while its midsize deal is $12.50 per user per month. Office 365 Enterprise E4, which is essentially Microsoft’s top package for corporate users, costs $22 per user per month. While Google’s own Business Apps service is $50 per user per year, Microsoft argues it’s giving customers more for what they’re getting.

Outlook comes with 50GB of storage space per user, but the company also delivers 1TB of storage for each user on OneDrive for Business. Cloud storage is an integral component in Microsoft’s cloud-first plans, so it’s no surprise the company is so bullish on offering storage space to users.