Pros
Hilton takes pretty good care of their people; salaries are fair, benefits are good, and PTO is more than adequate. People seem to get from their jobs there (both in terms of promotion and retention) what they put into them, which isn't the case everywhere. Expectations for performance have been high but not unreasonable, in my experience. This is a good place to work.
Cons
At least on the eCommerce side, getting meaningful things done can be frustrating, since you're not only having to get buy-in from 10 brands, but also dealing with a number of territorial departments that don't want to share their toys. The department also can't seem to figure out what it wants to be or what its goals are, which can leave employees wondering if they are there to provide customer service to hotels, improve the websites, or drive revenue. It's a fairly young department so this will mostly likely get better, but there are currently growing pains.