Instead of having an onsite server running property management system software that has to synchronize inventory with the central reservation system, a web based property management system you can access via a browser has the following benefits for the hotel owner:

1) Don't have to worry about server HDD failures, or any other hardware failures.

2) If power goes out, just browse to the website with a mobile device.

3) Never any inventory issues since there is no synchronization that needs to be done.

4) Revolving door of minimum wage front desk workers who install malware on your Windows computers can't do that anymore if using an iPad or iPad like device, and if they do, it wouldn't result in liability due to theft of people's data. See Marriott/IHG data leaks a few years ago.

5) Lowers labor costs since you don't need someone to troubleshoot technical stuff, other than get a device with an internet connection and a browser.

6) Can move towards a self check in check out system where the guest can basically do it all via an app or the hotel's website, further reducing labor costs.

7) Features can be updated and implemented far more easily when hardware features don't have to be worried about.